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12525073740 = 223457731527
BaseRepresentation
bin10111010101000110…
…10111010101001100
31012022220010200010000
423222203113111030
5201122404324430
65430503444300
7622245240654
oct135243272514
935286120100
1012525073740
115348094313
122516756690
131247b8854a
1486b65d364
154d48dce60
hex2ea8d754c

12525073740 has 60 divisors (see below), whose sum is σ = 39291625296. Its totient is φ = 3340019232.

The previous prime is 12525073711. The next prime is 12525073751. The reversal of 12525073740 is 4737052521.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12525073695 and 12525073704.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3864144 + ... + 3867383.

Almost surely, 212525073740 is an apocalyptic number.

12525073740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525073740 is an abundant number, since it is smaller than the sum of its proper divisors (26766551556).

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

12525073740 is a wasteful number, since it uses less digits than its factorization.

12525073740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731548 (or 7731537 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 12525073740 in words is "twelve billion, five hundred twenty-five million, seventy-three thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 7731527 15463054 23194581 30926108 38657635 46389162 69583743 77315270 92778324 115972905 139167486 154630540 208751229 231945810 278334972 347918715 417502458 463891620 626253687 695837430 835004916 1043756145 1252507374 1391674860 2087512290 2505014748 3131268435 4175024580 6262536870 12525073740