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12100113291 = 37576195871
BaseRepresentation
bin10110100010011100…
…10001001110001011
31011020021111102222010
423101032101032023
5144240112111131
65320403231003
7605565160140
oct132116211613
934207442863
1012100113291
11514a220232
122418378463
1311aab17a66
1482b03c3c7
154ac448b46
hex2d139138b

12100113291 has 8 divisors (see below), whose sum is σ = 18438267904. Its totient is φ = 6914350440.

The previous prime is 12100113253. The next prime is 12100113331. The reversal of 12100113291 is 19231100121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12100113291 - 26 = 12100113227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 576195871 = 12100113291 / (1 + 2 + 1 + 0 + 0 + 1 + 1 + 3 + 2 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (12100113241) 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, 288097915 + ... + 288097956.

It is an arithmetic number, because the mean of its divisors is an integer number (2304783488).

Almost surely, 212100113291 is an apocalyptic number.

12100113291 is a deficient number, since it is larger than the sum of its proper divisors (6338154613).

12100113291 is an equidigital number, since it uses as much as digits as its factorization.

12100113291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576195881.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 12100113291 in words is "twelve billion, one hundred million, one hundred thirteen thousand, two hundred ninety-one".

Divisors: 1 3 7 21 576195871 1728587613 4033371097 12100113291