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12568827140 = 2251733632609
BaseRepresentation
bin10111011010010100…
…10001010100000100
31012102221110120111022
423231022101110010
5201220104432030
65435105330312
7623316160622
oct135512212404
935387416438
1012568827140
11536a858951
122529336998
131253c6762c
148733ac512
154d8681de5
hex2ed291504

12568827140 has 24 divisors (see below), whose sum is σ = 26547113880. Its totient is φ = 4998468608.

The previous prime is 12568827137. The next prime is 12568827143. The reversal of 12568827140 is 4172886521.

It is an interprime number because it is at equal distance from previous prime (12568827137) and next prime (12568827143).

It can be written as a sum of positive squares in 4 ways, for example, as 5101102084 + 7467725056 = 71422^2 + 86416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12568827091 and 12568827100.

It is not an unprimeable number, because it can be changed into a prime (12568827143) 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, 1812845 + ... + 1819764.

It is an arithmetic number, because the mean of its divisors is an integer number (1106129745).

Almost surely, 212568827140 is an apocalyptic number.

12568827140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12568827140 is an abundant number, since it is smaller than the sum of its proper divisors (13978286740).

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

12568827140 is a wasteful number, since it uses less digits than its factorization.

12568827140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632791 (or 3632789 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 12568827140 in words is "twelve billion, five hundred sixty-eight million, eight hundred twenty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 3632609 7265218 14530436 18163045 36326090 72652180 628441357 1256882714 2513765428 3142206785 6284413570 12568827140