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13251525020 = 2257397137683
BaseRepresentation
bin11000101011101101…
…00011100110011100
31021012112002012220222
430111312203212130
5204114342300040
610030534100512
7646246050506
oct142566434634
937175065828
1013251525020
11569015a978
122699aaa738
131332529586
148d9d20d76
15528587bb5
hex315da399c

13251525020 has 96 divisors (see below), whose sum is σ = 28750292928. Its totient is φ = 5128814592.

The previous prime is 13251525011. The next prime is 13251525047. The reversal of 13251525020 is 2052515231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19401599 + ... + 19402281.

It is an arithmetic number, because the mean of its divisors is an integer number (299482218).

Almost surely, 213251525020 is an apocalyptic number.

13251525020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13251525020 is an abundant number, since it is smaller than the sum of its proper divisors (15498767908).

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

13251525020 is a wasteful number, since it uses less digits than its factorization.

13251525020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 13251525020 in words is "thirteen billion, two hundred fifty-one million, five hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 73 97 137 146 194 274 292 365 388 485 548 683 685 730 970 1366 1370 1460 1940 2732 2740 3415 6830 7081 10001 13289 13660 14162 20002 26578 28324 35405 40004 49859 50005 53156 66251 66445 70810 93571 99718 100010 132502 132890 141620 187142 199436 200020 249295 265004 265780 331255 374284 467855 498590 662510 935710 970097 997180 1325020 1871420 1940194 3880388 4836323 4850485 6830683 9076387 9672646 9700970 13661366 18152774 19345292 19401940 24181615 27322732 34153415 36305548 45381935 48363230 68306830 90763870 96726460 136613660 181527740 662576251 1325152502 2650305004 3312881255 6625762510 13251525020