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12264807820 = 2254159147449
BaseRepresentation
bin10110110110000101…
…00001110110001100
31011122202101210101111
423123002201312030
5200104242322240
65345005221404
7612635101126
oct133302416614
934582353344
1012264807820
115224189711
122463561864
131205c90245
14844c70216
154bbb2c1ea
hex2db0a1d8c

12264807820 has 24 divisors (see below), whose sum is σ = 25762464000. Its totient is φ = 4904710272.

The previous prime is 12264807817. The next prime is 12264807823. The reversal of 12264807820 is 2870846221.

It is an interprime number because it is at equal distance from previous prime (12264807817) and next prime (12264807823).

It is not an unprimeable number, because it can be changed into a prime (12264807823) 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, 9456 + ... + 156904.

It is an arithmetic number, because the mean of its divisors is an integer number (1073436000).

Almost surely, 212264807820 is an apocalyptic number.

12264807820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12264807820 is an abundant number, since it is smaller than the sum of its proper divisors (13497656180).

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

12264807820 is a wasteful number, since it uses less digits than its factorization.

12264807820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151617 (or 151615 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 12264807820 in words is "twelve billion, two hundred sixty-four million, eight hundred seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 4159 8318 16636 20795 41590 83180 147449 294898 589796 737245 1474490 2948980 613240391 1226480782 2452961564 3066201955 6132403910 12264807820