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142547916 = 22377921481
BaseRepresentation
bin10000111111100…
…01101111001100
3100221020011222110
420133301233030
5242443013131
622051144020
73350431410
oct1037615714
9327204873
10142547916
11735123a5
123b8a5010
13236bcca4
1414d08d40
15c7ab646
hex87f1bcc

142547916 has 48 divisors (see below), whose sum is σ = 384957440. Its totient is φ = 40210560.

The previous prime is 142547887. The next prime is 142547921. The reversal of 142547916 is 619745241.

142547916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4105 + ... + 17376.

Almost surely, 2142547916 is an apocalyptic number.

It is an amenable number.

142547916 is an abundant number, since it is smaller than the sum of its proper divisors (242409524).

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

142547916 is a wasteful number, since it uses less digits than its factorization.

142547916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21574 (or 21572 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 142547916 is about 11939.3431980155. The cubic root of 142547916 is about 522.3805008954.

The spelling of 142547916 in words is "one hundred forty-two million, five hundred forty-seven thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 474 553 948 1106 1659 2212 3318 6636 21481 42962 64443 85924 128886 150367 257772 300734 451101 601468 902202 1696999 1804404 3393998 5090997 6787996 10181994 11878993 20363988 23757986 35636979 47515972 71273958 142547916