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52818845952 = 28369199529
BaseRepresentation
bin110001001100001111…
…111010000100000000
312001100000222101022210
4301030033322010000
51331133111032302
640133055102120
73546620532345
oct611417720400
9161300871283
1052818845952
1120444952804
12a2a0b11940
134c99a68002
1427b0c5c7cc
1515920a366c
hexc4c3fa100

52818845952 has 72 divisors (see below), whose sum is σ = 140780009440. Its totient is φ = 17580625920.

The previous prime is 52818845941. The next prime is 52818845953. The reversal of 52818845952 is 25954881825.

It is a super-3 number, since 3×528188459523 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 52818845892 and 52818845901.

It is not an unprimeable number, because it can be changed into a prime (52818845953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480924 + ... + 580452.

Almost surely, 252818845952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52818845952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70390004720).

52818845952 is an abundant number, since it is smaller than the sum of its proper divisors (87961163488).

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

52818845952 is an equidigital number, since it uses as much as digits as its factorization.

52818845952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100239 (or 100225 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 57.

The spelling of 52818845952 in words is "fifty-two billion, eight hundred eighteen million, eight hundred forty-five thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 691 768 1382 2073 2764 4146 5528 8292 11056 16584 22112 33168 44224 66336 88448 99529 132672 176896 199058 265344 298587 398116 530688 597174 796232 1194348 1592464 2388696 3184928 4777392 6369856 9554784 12739712 19109568 25479424 38219136 68774539 76438272 137549078 206323617 275098156 412647234 550196312 825294468 1100392624 1650588936 2200785248 3301177872 4401570496 6602355744 8803140992 13204711488 17606281984 26409422976 52818845952