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87314057 = 175136121
BaseRepresentation
bin1010011010001…
…00111010001001
320002022000100222
411031010322021
5134323022212
612355235425
72110104635
oct515047211
9202260328
1087314057
1145317386
12252a8b75
131512152c
14b84bdc5
1579eac72
hex5344e89

87314057 has 4 divisors (see below), whose sum is σ = 92450196. Its totient is φ = 82177920.

The previous prime is 87314053. The next prime is 87314077. The reversal of 87314057 is 75041378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67502656 + 19811401 = 8216^2 + 4451^2 .

It is a cyclic number.

It is not a de Polignac number, because 87314057 - 22 = 87314053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87314053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2568044 + ... + 2568077.

It is an arithmetic number, because the mean of its divisors is an integer number (23112549).

Almost surely, 287314057 is an apocalyptic number.

It is an amenable number.

87314057 is a deficient number, since it is larger than the sum of its proper divisors (5136139).

87314057 is a wasteful number, since it uses less digits than its factorization.

87314057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136138.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 87314057 is about 9344.1991096081. The cubic root of 87314057 is about 443.6373025455.

The spelling of 87314057 in words is "eighty-seven million, three hundred fourteen thousand, fifty-seven".

Divisors: 1 17 5136121 87314057