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52945970272 = 25137313113309
BaseRepresentation
bin110001010011110100…
…110110010001100000
312001122220011222002221
4301103310312101200
51331413132022042
640153435520424
73553023215236
oct612364662140
9161586158087
1052945970272
11204aa690128
12a3175b9114
134cba1b78c0
1427c3ab0956
15159d314d67
hexc53d36460

52945970272 has 96 divisors (see below), whose sum is σ = 114670654560. Its totient is φ = 23916072960.

The previous prime is 52945970251. The next prime is 52945970291. The reversal of 52945970272 is 27207954925.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3971554 + ... + 3984862.

It is an arithmetic number, because the mean of its divisors is an integer number (1194485985).

Almost surely, 252945970272 is an apocalyptic number.

52945970272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52945970272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57335327280).

52945970272 is an abundant number, since it is smaller than the sum of its proper divisors (61724684288).

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

52945970272 is a wasteful number, since it uses less digits than its factorization.

52945970272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536 (or 13528 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 52945970272 in words is "fifty-two billion, nine hundred forty-five million, nine hundred seventy thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 73 104 131 146 208 262 292 416 524 584 949 1048 1168 1703 1898 2096 2336 3406 3796 4192 6812 7592 9563 13309 13624 15184 19126 26618 27248 30368 38252 53236 54496 76504 106472 124319 153008 173017 212944 248638 306016 346034 425888 497276 692068 971557 994552 1384136 1743479 1943114 1989104 2768272 3486958 3886228 3978208 5536544 6973916 7772456 12630241 13947832 15544912 22665227 25260482 27895664 31089824 45330454 50520964 55791328 90660908 101041928 127273967 181321816 202083856 254547934 362643632 404167712 509095868 725287264 1018191736 1654561571 2036383472 3309123142 4072766944 6618246284 13236492568 26472985136 52945970272