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12740198380 = 2257137000109
BaseRepresentation
bin10111101110101111…
…11111111111101100
31012212212221010122021
423313113333333230
5202042442322010
65504110355524
7630466620340
oct136727777754
935785833567
1012740198380
115448567678
1225767bbba4
131280609b30
1488c05b620
154e87338da
hex2f75fffec

12740198380 has 48 divisors (see below), whose sum is σ = 32928517440. Its totient is φ = 4032062208.

The previous prime is 12740198351. The next prime is 12740198411. The reversal of 12740198380 is 8389104721.

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, 3498235 + ... + 3501874.

It is an arithmetic number, because the mean of its divisors is an integer number (686010780).

Almost surely, 212740198380 is an apocalyptic number.

12740198380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740198380 is an abundant number, since it is smaller than the sum of its proper divisors (20188319060).

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

12740198380 is a wasteful number, since it uses less digits than its factorization.

12740198380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000138 (or 7000136 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 12740198380 in words is "twelve billion, seven hundred forty million, one hundred ninety-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 7000109 14000218 28000436 35000545 49000763 70001090 91001417 98001526 140002180 182002834 196003052 245003815 364005668 455007085 490007630 637009919 910014170 980015260 1274019838 1820028340 2548039676 3185049595 6370099190 12740198380