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142348470 = 23511974447
BaseRepresentation
bin10000111110000…
…01000010110110
3100220212001101120
420133001002312
5242420122340
622043004410
73345641055
oct1037010266
9326761346
10142348470
1173396570
123b809706
1323650284
1414c9639c
15c76c4d0
hex87c10b6

142348470 has 64 divisors (see below), whose sum is σ = 376621056. Its totient is φ = 34145280.

The previous prime is 142348439. The next prime is 142348489. The reversal of 142348470 is 74843241.

It is a super-2 number, since 2×1423484702 = 40526173822681800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29787 + ... + 34233.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 2142348470 is an apocalyptic number.

142348470 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 142348470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188310528).

142348470 is an abundant number, since it is smaller than the sum of its proper divisors (234272586).

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

142348470 is a wasteful number, since it uses less digits than its factorization.

142348470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 142348470 is about 11930.9878048718. The cubic root of 142348470 is about 522.1367575211.

The spelling of 142348470 in words is "one hundred forty-two million, three hundred forty-eight thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 97 110 165 194 291 330 485 582 970 1067 1455 2134 2910 3201 4447 5335 6402 8894 10670 13341 16005 22235 26682 32010 44470 48917 66705 97834 133410 146751 244585 293502 431359 489170 733755 862718 1294077 1467510 2156795 2588154 4313590 4744949 6470385 9489898 12940770 14234847 23724745 28469694 47449490 71174235 142348470