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12100648923 = 3211211111707
BaseRepresentation
bin10110100010100000…
…10011111111011011
31011020022111122201100
423101100103333123
5144240231231143
65320422522443
7605602550556
oct132120237733
934208448640
1012100648923
11514a556700
122418596423
1311aac747bc
1482b13b69d
154ac5026d3
hex2d1413fdb

12100648923 has 18 divisors (see below), whose sum is σ = 19212143132. Its totient is φ = 7333725960.

The previous prime is 12100648907. The next prime is 12100648951. The reversal of 12100648923 is 32984600121.

12100648923 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 0 + 648 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 12100648923 - 24 = 12100648907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100648223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5554765 + ... + 5556942.

Almost surely, 212100648923 is an apocalyptic number.

12100648923 is a deficient number, since it is larger than the sum of its proper divisors (7111494209).

12100648923 is a wasteful number, since it uses less digits than its factorization.

12100648923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111735 (or 11111721 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 12100648923 in words is "twelve billion, one hundred million, six hundred forty-eight thousand, nine hundred twenty-three".

Divisors: 1 3 9 11 33 99 121 363 1089 11111707 33335121 100005363 122228777 366686331 1100058993 1344516547 4033549641 12100648923