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20013725424560 = 245735738795401
BaseRepresentation
bin1001000110011110011101…
…11111101001101110110000
32121212021220221021022112112
410203033032333221232300
510110401102202041220
6110322102321344452
74133641526141630
oct443171677515660
977767827238475
1020013725424560
11641685627771a
1222b2964198128
13b22394a5732a
144d295309c6c0
1524a909d2d5c5
hex1233cefe9bb0

20013725424560 has 40 divisors (see below), whose sum is σ = 53179327558176. Its totient is φ = 6861848716800.

The previous prime is 20013725424521. The next prime is 20013725424599. The reversal of 20013725424560 is 6542452731002.

It is an interprime number because it is at equal distance from previous prime (20013725424521) and next prime (20013725424599).

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17869397141 + ... + 17869398260.

Almost surely, 220013725424560 is an apocalyptic number.

20013725424560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013725424560 is an abundant number, since it is smaller than the sum of its proper divisors (33165602133616).

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

20013725424560 is a wasteful number, since it uses less digits than its factorization.

20013725424560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35738795421 (or 35738795415 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 20013725424560 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, four hundred twenty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 35738795401 71477590802 142955181604 178693977005 250171567807 285910363208 357387954010 500343135614 571820726416 714775908020 1000686271228 1250857839035 1429551816040 2001372542456 2501715678070 2859103632080 4002745084912 5003431356140 10006862712280 20013725424560