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87537942 = 2338319531
BaseRepresentation
bin1010011011110…
…11100100010110
320002201101111000
411031323210112
5134402203232
612404124130
72112026442
oct515734426
9202641430
1087537942
114545a608
1225396646
131519c3cb
14b8a9822
157a4227c
hex537b916

87537942 has 32 divisors (see below), whose sum is σ = 196882560. Its totient is φ = 28826280.

The previous prime is 87537929. The next prime is 87537943. The reversal of 87537942 is 24973578.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87537943) 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, 5284 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (6152580).

Almost surely, 287537942 is an apocalyptic number.

87537942 is an abundant number, since it is smaller than the sum of its proper divisors (109344618).

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

87537942 is a wasteful number, since it uses less digits than its factorization.

87537942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625 (or 19619 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 87537942 is about 9356.1713323346. The cubic root of 87537942 is about 444.0161608435.

The spelling of 87537942 in words is "eighty-seven million, five hundred thirty-seven thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 83 166 249 498 747 1494 2241 4482 19531 39062 58593 117186 175779 351558 527337 1054674 1621073 3242146 4863219 9726438 14589657 29179314 43768971 87537942