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87299003 = 11531371093
BaseRepresentation
bin1010011010000…
…01001110111011
320002021020201102
411031001032323
5134322032003
612355042015
72110013021
oct515011673
9202236642
1087299003
1145307040
12252a030b
131511771c
14b846711
1579e6588
hex53413bb

87299003 has 16 divisors (see below), whose sum is σ = 97829856. Its totient is φ = 77226240.

The previous prime is 87298997. The next prime is 87299027. The reversal of 87299003 is 30099278.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87299003 is a prime.

It is a super-2 number, since 2×872990032 = 15242231849588018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87299203) 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, 79325 + ... + 80417.

It is an arithmetic number, because the mean of its divisors is an integer number (6114366).

Almost surely, 287299003 is an apocalyptic number.

87299003 is a deficient number, since it is larger than the sum of its proper divisors (10530853).

87299003 is a wasteful number, since it uses less digits than its factorization.

87299003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 87299003 is about 9343.3935483849. The cubic root of 87299003 is about 443.6118049337.

The spelling of 87299003 in words is "eighty-seven million, two hundred ninety-nine thousand, three".

Divisors: 1 11 53 137 583 1093 1507 7261 12023 57929 79871 149741 637219 1647151 7936273 87299003