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52856313769 = 72191274091093
BaseRepresentation
bin110001001110011110…
…110101011110101001
312001102122110221111201
4301032132311132221
51331222204020034
640140514124201
73550554153100
oct611636653651
9161378427451
1052856313769
1120464013946
12a2b1580661
134ca475610c
1427b5c13037
151595505014
hexc4e7b57a9

52856313769 has 48 divisors (see below), whose sum is σ = 65450956800. Its totient is φ = 42439977216.

The previous prime is 52856313737. The next prime is 52856313781. The reversal of 52856313769 is 96731365825.

It is not a de Polignac number, because 52856313769 - 25 = 52856313737 is a prime.

It is a super-2 number, since 2×528563137692 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52856310769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48358387 + ... + 48359479.

It is an arithmetic number, because the mean of its divisors is an integer number (1363561600).

Almost surely, 252856313769 is an apocalyptic number.

It is an amenable number.

52856313769 is a deficient number, since it is larger than the sum of its proper divisors (12594643031).

52856313769 is a wasteful number, since it uses less digits than its factorization.

52856313769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1655 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 55.

The spelling of 52856313769 in words is "fifty-two billion, eight hundred fifty-six million, three hundred thirteen thousand, seven hundred sixty-nine".

Divisors: 1 7 19 49 127 133 409 889 931 1093 2413 2863 6223 7651 7771 16891 20041 20767 51943 53557 54397 118237 138811 145369 363601 380779 447037 971677 986917 1017583 2545207 2637409 3129259 6801739 6908419 8493703 18461863 21904813 48358933 56773699 59455921 129233041 397415893 416191447 1078700281 2781911251 7550901967 52856313769