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12371000931 = 3229246719213
BaseRepresentation
bin10111000010101111…
…00111111001100011
31011221011012221221200
423201113213321203
5200313434012211
65403321252243
7615364526052
oct134127477143
934834187850
1012371000931
115279120113
122493034083
131221c918c3
14854dd4399
154c6106b56
hex2e15e7e63

12371000931 has 24 divisors (see below), whose sum is σ = 18493859280. Its totient is φ = 7959301056.

The previous prime is 12371000927. The next prime is 12371000959. The reversal of 12371000931 is 13900017321.

It is not a de Polignac number, because 12371000931 - 22 = 12371000927 is a prime.

It is a super-2 number, since 2×123710009312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12371000895 and 12371000904.

It is not an unprimeable number, because it can be changed into a prime (12371000911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634281 + ... + 653493.

It is an arithmetic number, because the mean of its divisors is an integer number (770577470).

Almost surely, 212371000931 is an apocalyptic number.

12371000931 is a deficient number, since it is larger than the sum of its proper divisors (6122858349).

12371000931 is a wasteful number, since it uses less digits than its factorization.

12371000931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21715 (or 21712 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The spelling of 12371000931 in words is "twelve billion, three hundred seventy-one million, nine hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 9 29 87 261 2467 7401 19213 22203 57639 71543 172917 214629 557177 643887 1671531 5014593 47398471 142195413 426586239 1374555659 4123666977 12371000931