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12013870380 = 2235359557747
BaseRepresentation
bin10110011000001010…
…10001110100101100
31011000021012211221020
423030011101310230
5144101022323010
65304042534140
7603500133111
oct131405216454
934007184836
1012013870380
1151055756a6
1223b3507350
131195cacc55
1481d7cc908
154a4ab0470
hex2cc151d2c

12013870380 has 48 divisors (see below), whose sum is σ = 33732599040. Its totient is φ = 3194769088.

The previous prime is 12013870343. The next prime is 12013870399. The reversal of 12013870380 is 8307831021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257334 + ... + 300413.

It is an arithmetic number, because the mean of its divisors is an integer number (702762480).

Almost surely, 212013870380 is an apocalyptic number.

12013870380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013870380 is an abundant number, since it is smaller than the sum of its proper divisors (21718728660).

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

12013870380 is a wasteful number, since it uses less digits than its factorization.

12013870380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558118 (or 558116 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 12013870380 in words is "twelve billion, thirteen million, eight hundred seventy thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 359 718 1077 1436 1795 2154 3590 4308 5385 7180 10770 21540 557747 1115494 1673241 2230988 2788735 3346482 5577470 6692964 8366205 11154940 16732410 33464820 200231173 400462346 600693519 800924692 1001155865 1201387038 2002311730 2402774076 3003467595 4004623460 6006935190 12013870380