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89020057 = 712717151
BaseRepresentation
bin1010100111001…
…01011010011001
320012111200120011
411103211122121
5140242120212
612500001521
72130441460
oct523453231
9205450504
1089020057
11462820a5
12259902a1
131559abb9
14bb739d7
157c364a7
hex54e5699

89020057 has 4 divisors (see below), whose sum is σ = 101737216. Its totient is φ = 76302900.

The previous prime is 89020049. The next prime is 89020067. The reversal of 89020057 is 75002098.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89020057 - 23 = 89020049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89020027) 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, 6358569 + ... + 6358582.

It is an arithmetic number, because the mean of its divisors is an integer number (25434304).

Almost surely, 289020057 is an apocalyptic number.

It is an amenable number.

89020057 is a deficient number, since it is larger than the sum of its proper divisors (12717159).

89020057 is a wasteful number, since it uses less digits than its factorization.

89020057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12717158.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 89020057 is about 9435.0440910470. The cubic root of 89020057 is about 446.5080461376.

The spelling of 89020057 in words is "eighty-nine million, twenty thousand, fifty-seven".

Divisors: 1 7 12717151 89020057