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87992873 = 2910512887
BaseRepresentation
bin1010011111010…
…10101000101001
320010120111112022
411033222220221
5140011232443
612421554225
72115632663
oct517525051
9203514468
1087992873
1145740391
1225575975
13152cb4b7
14b987533
157ad1e68
hex53eaa29

87992873 has 8 divisors (see below), whose sum is σ = 91145280. Its totient is φ = 84848400.

The previous prime is 87992837. The next prime is 87992897. The reversal of 87992873 is 37829978.

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 87992873 - 28 = 87992617 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (87992473) 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, 29036 + ... + 31922.

It is an arithmetic number, because the mean of its divisors is an integer number (11393160).

Almost surely, 287992873 is an apocalyptic number.

It is an amenable number.

87992873 is a deficient number, since it is larger than the sum of its proper divisors (3152407).

87992873 is a wasteful number, since it uses less digits than its factorization.

87992873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967.

The product of its digits is 1524096, while the sum is 53.

The square root of 87992873 is about 9380.4516415789. The cubic root of 87992873 is about 444.7840099820.

The spelling of 87992873 in words is "eighty-seven million, nine hundred ninety-two thousand, eight hundred seventy-three".

Divisors: 1 29 1051 2887 30479 83723 3034237 87992873