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87613037 = 3119114797
BaseRepresentation
bin1010011100011…
…01111001101101
320002212012111022
411032031321231
5134412104122
612405503525
72112461411
oct516157155
9202765438
1087613037
1145500a76
1225411ba5
13151c7645
14b8c8d41
157a59642
hex538de6d

87613037 has 8 divisors (see below), whose sum is σ = 90918912. Its totient is φ = 84337200.

The previous prime is 87613033. The next prime is 87613039. The reversal of 87613037 is 73031678.

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

It is a cyclic number.

It is not a de Polignac number, because 87613037 - 22 = 87613033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87612988 and 87613006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87613033) 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, 1478 + ... + 13319.

It is an arithmetic number, because the mean of its divisors is an integer number (11364864).

Almost surely, 287613037 is an apocalyptic number.

It is an amenable number.

87613037 is a deficient number, since it is larger than the sum of its proper divisors (3305875).

87613037 is a wasteful number, since it uses less digits than its factorization.

87613037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15019.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 87613037 is about 9360.1835986267. The cubic root of 87613037 is about 444.1430919500.

The spelling of 87613037 in words is "eighty-seven million, six hundred thirteen thousand, thirty-seven".

Divisors: 1 31 191 5921 14797 458707 2826227 87613037