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20526055421260 = 22517421143398459
BaseRepresentation
bin1001010101011000110000…
…01111011111010101001100
32200200021100002112202111111
410222230120033133111030
510142244330141440020
6111353312323301404
74215646534230454
oct452543017372514
980607302482444
1020526055421260
1165a4062199134
12237610651a864
13b5b7a250b02c
1450d675a80d64
15258de3168d5a
hex12ab183df54c

20526055421260 has 48 divisors (see below), whose sum is σ = 45748697490720. Its totient is φ = 7709101102080.

The previous prime is 20526055421161. The next prime is 20526055421281. The reversal of 20526055421260 is 6212455062502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71556090 + ... + 71842369.

It is an arithmetic number, because the mean of its divisors is an integer number (953097864390).

Almost surely, 220526055421260 is an apocalyptic number.

20526055421260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20526055421260 is an abundant number, since it is smaller than the sum of its proper divisors (25222642069460).

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

20526055421260 is a wasteful number, since it uses less digits than its factorization.

20526055421260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143398906 (or 143398904 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 20526055421260 in words is "twenty trillion, five hundred twenty-six billion, fifty-five million, four hundred twenty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 421 842 1684 2105 4210 7157 8420 14314 28628 35785 71570 143140 143398459 286796918 573593836 716992295 1433984590 2437773803 2867969180 4875547606 9751095212 12188869015 24377738030 48755476060 60370751239 120741502478 241483004956 301853756195 603707512390 1026302771063 1207415024780 2052605542126 4105211084252 5131513855315 10263027710630 20526055421260