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52981748457 = 3112577162299
BaseRepresentation
bin110001010101111101…
…010101001011101001
312001202101111200112220
4301111331111023221
51332001311422312
640201154424253
73553636300641
oct612575251351
9161671450486
1052981748457
11205188a7880
12a327592089
134cc4733921
1427c8745521
1515a1530c8c
hexc55f552e9

52981748457 has 16 divisors (see below), whose sum is σ = 77068588800. Its totient is φ = 32108389200.

The previous prime is 52981748419. The next prime is 52981748459. The reversal of 52981748457 is 75484718925.

It is not a de Polignac number, because 52981748457 - 211 = 52981746409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52981748457.

It is not an unprimeable number, because it can be changed into a prime (52981748459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819294 + ... + 881592.

It is an arithmetic number, because the mean of its divisors is an integer number (4816786800).

Almost surely, 252981748457 is an apocalyptic number.

It is an amenable number.

52981748457 is a deficient number, since it is larger than the sum of its proper divisors (24086840343).

52981748457 is a wasteful number, since it uses less digits than its factorization.

52981748457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88084.

The product of its digits is 22579200, while the sum is 60.

The spelling of 52981748457 in words is "fifty-two billion, nine hundred eighty-one million, seven hundred forty-eight thousand, four hundred fifty-seven".

Divisors: 1 3 11 33 25771 62299 77313 186897 283481 685289 850443 2055867 1605507529 4816522587 17660582819 52981748457