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9113090957 = 31728747921
BaseRepresentation
bin10000111110010111…
…01011101110001101
3212112002212222122022
420133023223232031
5122130422402312
64104141055525
7441554665205
oct103713535615
925462788568
109113090957
113957114133
121923b575a5
13b23028519
14626453405
153850ba172
hex21f2ebb8d

9113090957 has 4 divisors (see below), whose sum is σ = 9141839196. Its totient is φ = 9084342720.

The previous prime is 9113090929. The next prime is 9113090963. The reversal of 9113090957 is 7590903119.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7590903119 = 47161508577.

It can be written as a sum of positive squares in 2 ways, for example, as 4142981956 + 4970109001 = 64366^2 + 70499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9113090957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113090977) 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, 14373644 + ... + 14374277.

It is an arithmetic number, because the mean of its divisors is an integer number (2285459799).

Almost surely, 29113090957 is an apocalyptic number.

It is an amenable number.

9113090957 is a deficient number, since it is larger than the sum of its proper divisors (28748239).

9113090957 is a wasteful number, since it uses less digits than its factorization.

9113090957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28748238.

The product of its (nonzero) digits is 76545, while the sum is 44.

The square root of 9113090957 is about 95462.5107411281. The cubic root of 9113090957 is about 2088.7601260742.

The spelling of 9113090957 in words is "nine billion, one hundred thirteen million, ninety thousand, nine hundred fifty-seven".

Divisors: 1 317 28747921 9113090957