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53879942520 = 23325199752093
BaseRepresentation
bin110010001011011111…
…101010110101111000
312011001222121200011200
4302023133222311320
51340321231130040
640430242054200
73615123645345
oct621337526570
9164058550150
1053879942520
1120939906318
12a53834a360
1351088472c1
142871b517cc
151605302630
hexc8b7ead78

53879942520 has 96 divisors (see below), whose sum is σ = 175989996000. Its totient is φ = 14295764736.

The previous prime is 53879942513. The next prime is 53879942521. The reversal of 53879942520 is 2524997835.

53879942520 is a `hidden beast` number, since 5 + 3 + 8 + 79 + 9 + 42 + 520 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53879942521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304407 + ... + 447686.

It is an arithmetic number, because the mean of its divisors is an integer number (1833229125).

Almost surely, 253879942520 is an apocalyptic number.

It is an amenable number.

53879942520 is an abundant number, since it is smaller than the sum of its proper divisors (122110053480).

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

53879942520 is a wasteful number, since it uses less digits than its factorization.

53879942520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752309 (or 752302 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 53879942520 in words is "fifty-three billion, eight hundred seventy-nine million, nine hundred forty-two thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 199 360 398 597 796 995 1194 1592 1791 1990 2388 2985 3582 3980 4776 5970 7164 7960 8955 11940 14328 17910 23880 35820 71640 752093 1504186 2256279 3008372 3760465 4512558 6016744 6768837 7520930 9025116 11281395 13537674 15041860 18050232 22562790 27075348 30083720 33844185 45125580 54150696 67688370 90251160 135376740 149666507 270753480 299333014 448999521 598666028 748332535 897999042 1197332056 1346998563 1496665070 1795998084 2244997605 2693997126 2993330140 3591996168 4489995210 5387994252 5986660280 6734992815 8979990420 10775988504 13469985630 17959980840 26939971260 53879942520