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142112560 = 24537411171
BaseRepresentation
bin10000111100001…
…11011100110000
3100220102001210011
420132013130300
5242340100220
622033544304
73343636222
oct1036073460
9326361704
10142112560
11732452a7
123b715094
1323599a95
1414c34412
15c72265a
hex8787730

142112560 has 80 divisors (see below), whose sum is σ = 347915232. Its totient is φ = 53913600.

The previous prime is 142112543. The next prime is 142112567. The reversal of 142112560 is 65211241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (142112567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120775 + ... + 121945.

Almost surely, 2142112560 is an apocalyptic number.

142112560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142112560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173957616).

142112560 is an abundant number, since it is smaller than the sum of its proper divisors (205802672).

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

142112560 is a wasteful number, since it uses less digits than its factorization.

142112560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 142112560 is about 11921.0972649333. The cubic root of 142112560 is about 521.8481573199.

The spelling of 142112560 in words is "one hundred forty-two million, one hundred twelve thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 37 40 41 74 80 82 148 164 185 205 296 328 370 410 592 656 740 820 1171 1480 1517 1640 2342 2960 3034 3280 4684 5855 6068 7585 9368 11710 12136 15170 18736 23420 24272 30340 43327 46840 48011 60680 86654 93680 96022 121360 173308 192044 216635 240055 346616 384088 433270 480110 693232 768176 866540 960220 1733080 1776407 1920440 3466160 3552814 3840880 7105628 8882035 14211256 17764070 28422512 35528140 71056280 142112560