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142452001320 = 23354327606977
BaseRepresentation
bin1000010010101011001…
…1010000101000101000
3111121200201120110012220
42010222303100220220
54313220203020240
6145235212434040
713202044014126
oct2045263205050
9447621513186
10142452001320
1155460494012
1223736a78920
1310582886c55
146c75146916
153a8b11a5d0
hex212acd0a28

142452001320 has 64 divisors (see below), whose sum is σ = 437294531520. Its totient is φ = 37103775744.

The previous prime is 142452001271. The next prime is 142452001327. The reversal of 142452001320 is 23100254241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (142452001327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13798329 + ... + 13808648.

It is an arithmetic number, because the mean of its divisors is an integer number (6832727055).

Almost surely, 2142452001320 is an apocalyptic number.

142452001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142452001320 is an abundant number, since it is smaller than the sum of its proper divisors (294842530200).

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

142452001320 is a wasteful number, since it uses less digits than its factorization.

142452001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607034 (or 27607030 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 142452001320 its reverse (23100254241), we get a palindrome (165552255561).

The spelling of 142452001320 in words is "one hundred forty-two billion, four hundred fifty-two million, one thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 43 60 86 120 129 172 215 258 344 430 516 645 860 1032 1290 1720 2580 5160 27606977 55213954 82820931 110427908 138034885 165641862 220855816 276069770 331283724 414104655 552139540 662567448 828209310 1104279080 1187100011 1656418620 2374200022 3312837240 3561300033 4748400044 5935500055 7122600066 9496800088 11871000110 14245200132 17806500165 23742000220 28490400264 35613000330 47484000440 71226000660 142452001320