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87696537 = 336977907
BaseRepresentation
bin1010011101000…
…10010010011001
320010000110000220
411032202102121
5134422242122
612411350253
72113260015
oct516422231
9203013026
1087696537
1145558785
1225452389
1315226656
14b90b545
157a7425c
hex53a2499

87696537 has 8 divisors (see below), whose sum is σ = 116975136. Its totient is φ = 58441152.

The previous prime is 87696487. The next prime is 87696547. The reversal of 87696537 is 73569678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87696537 - 218 = 87434393 is a prime.

It is a super-3 number, since 3×876965373 (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 87696537.

It is not an unprimeable number, because it can be changed into a prime (87696547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7138 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (14621892).

Almost surely, 287696537 is an apocalyptic number.

It is an amenable number.

87696537 is a deficient number, since it is larger than the sum of its proper divisors (29278599).

87696537 is a wasteful number, since it uses less digits than its factorization.

87696537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11607.

The product of its digits is 1905120, while the sum is 51.

The square root of 87696537 is about 9364.6429189799. The cubic root of 87696537 is about 444.2841446747.

The spelling of 87696537 in words is "eighty-seven million, six hundred ninety-six thousand, five hundred thirty-seven".

Divisors: 1 3 3697 7907 11091 23721 29232179 87696537