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957397089 = 31137784109
BaseRepresentation
bin111001000100001…
…011100001100001
32110201111210220110
4321010023201201
53430043201324
6235000201533
732503512105
oct7104134141
92421453813
10957397089
11451475670
122287692a9
1312347196c
149121b905
15590b8329
hex3910b861

957397089 has 16 divisors (see below), whose sum is σ = 1430216640. Its totient is φ = 564557760.

The previous prime is 957397043. The next prime is 957397121. The reversal of 957397089 is 980793759.

It is not a de Polignac number, because 957397089 - 27 = 957396961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (957397489) 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, 390834 + ... + 393275.

It is an arithmetic number, because the mean of its divisors is an integer number (89388540).

Almost surely, 2957397089 is an apocalyptic number.

It is an amenable number.

957397089 is a deficient number, since it is larger than the sum of its proper divisors (472819551).

957397089 is a wasteful number, since it uses less digits than its factorization.

957397089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784160.

The product of its (nonzero) digits is 4286520, while the sum is 57.

The square root of 957397089 is about 30941.8339630992. The cubic root of 957397089 is about 985.5924490365.

The spelling of 957397089 in words is "nine hundred fifty-seven million, three hundred ninety-seven thousand, eighty-nine".

Divisors: 1 3 11 33 37 111 407 1221 784109 2352327 8625199 25875597 29012033 87036099 319132363 957397089