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142354555642170 = 23353140794169579
BaseRepresentation
bin100000010111100010000000…
…101110001010000100111010
3200200000221222202002012011000
4200113202000232022010322
5122124314112221022140
61222432440253545430
741661530411030034
oct4027420056120472
9620027882065130
10142354555642170
11413a4256536803
1213b713247a5276
136157c915cc431
142721dd6680c54
15116ce7e44ca30
hex817880b8a13a

142354555642170 has 128 divisors (see below), whose sum is σ = 391953862656000. Its totient is φ = 36727644421440.

The previous prime is 142354555642151. The next prime is 142354555642171. The reversal of 142354555642170 is 71246555453241.

142354555642170 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 5 + 4 + 5 + 5 + 564 + 2 + 1 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (142354555642171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32056441 + ... + 36226019.

It is an arithmetic number, because the mean of its divisors is an integer number (3062139552000).

Almost surely, 2142354555642170 is an apocalyptic number.

142354555642170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142354555642170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195976931328000).

142354555642170 is an abundant number, since it is smaller than the sum of its proper divisors (249599307013830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142354555642170 is a wasteful number, since it uses less digits than its factorization.

142354555642170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173705 (or 4173699 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 54.

The spelling of 142354555642170 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred fifty-five million, six hundred forty-two thousand, one hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 31 45 54 62 90 93 135 155 186 270 279 310 465 558 837 930 1395 1674 2790 4079 4185 8158 8370 12237 20395 24474 36711 40790 61185 73422 110133 122370 126449 183555 220266 252898 367110 379347 550665 632245 758694 1101330 1138041 1264490 1896735 2276082 3414123 3793470 4169579 5690205 6828246 8339158 11380410 12508737 17070615 20847895 25017474 34141230 37526211 41695790 62543685 75052422 112578633 125087370 129256949 187631055 225157266 258513898 375262110 387770847 562893165 646284745 775541694 1125786330 1163312541 1292569490 1938854235 2326625082 3489937623 3877708470 5816562705 6979875246 11633125410 17007712741 17449688115 34015425482 34899376230 51023138223 85038563705 102046276446 153069414669 170077127410 255115691115 306138829338 459208244007 510231382230 527239094971 765347073345 918416488014 1054478189942 1530694146690 1581717284913 2296041220035 2636195474855 3163434569826 4592082440070 4745151854739 5272390949710 7908586424565 9490303709478 14235455564217 15817172849130 23725759273695 28470911128434 47451518547390 71177277821085 142354555642170