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12570513844 = 2273539126857
BaseRepresentation
bin10111011010100001…
…01101000110110100
31012110001122021012211
423231100231012310
5201221022420334
65435205423204
7623336414260
oct135520550664
935401567184
1012570513844
115370800119
122529a0ab04
131254408295
148736cb0a0
154d88b6a64
hex2ed42d1b4

12570513844 has 24 divisors (see below), whose sum is σ = 25148329920. Its totient is φ = 5385798336.

The previous prime is 12570513821. The next prime is 12570513869. The reversal of 12570513844 is 44831507521.

12570513844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12570513797 and 12570513806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35664 + ... + 162520.

It is an arithmetic number, because the mean of its divisors is an integer number (1047847080).

Almost surely, 212570513844 is an apocalyptic number.

12570513844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12570513844 is an abundant number, since it is smaller than the sum of its proper divisors (12577816076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12570513844 is a wasteful number, since it uses less digits than its factorization.

12570513844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130407 (or 130405 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 12570513844 in words is "twelve billion, five hundred seventy million, five hundred thirteen thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 28 3539 7078 14156 24773 49546 99092 126857 253714 507428 887999 1775998 3551996 448946923 897893846 1795787692 3142628461 6285256922 12570513844