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20013725424725 = 525571823788399
BaseRepresentation
bin1001000110011110011101…
…11111101001110001010101
32121212021220221021022202122
410203033032333221301111
510110401102202042400
6110322102321345325
74133641526142254
oct443171677516125
977767827238678
1020013725424725
11641685627785a
1222b2964198245
13b22394a57426
144d295309c79b
1524a909d2d685
hex1233cefe9c55

20013725424725 has 24 divisors (see below), whose sum is σ = 24875243596800. Its totient is φ = 15973448054720.

The previous prime is 20013725424697. The next prime is 20013725424743. The reversal of 20013725424725 is 52742452731002.

It is not a de Polignac number, because 20013725424725 - 218 = 20013725162581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24991076 + ... + 25779474.

It is an arithmetic number, because the mean of its divisors is an integer number (1036468483200).

Almost surely, 220013725424725 is an apocalyptic number.

20013725424725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20013725424725 is a deficient number, since it is larger than the sum of its proper divisors (4861518172075).

20013725424725 is a wasteful number, since it uses less digits than its factorization.

20013725424725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790789 (or 790784 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 44.

The spelling of 20013725424725 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, four hundred twenty-four thousand, seven hundred twenty-five".

Divisors: 1 5 25 557 1823 2785 9115 13925 45575 788399 1015411 3941995 5077055 19709975 25385275 439138243 1437251377 2195691215 7186256885 10978456075 35931284425 800549016989 4002745084945 20013725424725