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12740325620 = 22511293197647
BaseRepresentation
bin10111101110110000…
…11111000011110100
31012212220011121011212
423313120133003310
5202043010404440
65504113220552
7630500660321
oct136730370364
935786147155
1012740325620
115448644230
122576861758
131280652a19
1488c091b48
154e875b465
hex2f761f0f4

12740325620 has 48 divisors (see below), whose sum is σ = 29286690048. Its totient is φ = 4617010560.

The previous prime is 12740325557. The next prime is 12740325709. The reversal of 12740325620 is 2652304721.

It is a congruent number.

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, 34364 + ... + 163283.

It is an arithmetic number, because the mean of its divisors is an integer number (610139376).

Almost surely, 212740325620 is an apocalyptic number.

12740325620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740325620 is an abundant number, since it is smaller than the sum of its proper divisors (16546364428).

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

12740325620 is a wasteful number, since it uses less digits than its factorization.

12740325620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197960 (or 197958 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 12740325620 in words is "twelve billion, seven hundred forty million, three hundred twenty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 293 586 1172 1465 2930 3223 5860 6446 12892 16115 32230 64460 197647 395294 790588 988235 1976470 2174117 3952940 4348234 8696468 10870585 21741170 43482340 57910571 115821142 231642284 289552855 579105710 637016281 1158211420 1274032562 2548065124 3185081405 6370162810 12740325620