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52615028133481 = 1123533923859209
BaseRepresentation
bin10111111011010011001000…
…00011111100111001101001
320220021221120202221110011111
423331221210003330321221
523344021034200232411
6303523002113430321
714040211305666352
oct1375514403747151
9226257522843144
1052615028133481
11158459a978a5a0
125a9918a56b3a1
132348764231108
14cdc81c1a6d29
15613986eca721
hex2fda640fce69

52615028133481 has 16 divisors (see below), whose sum is σ = 61023858433920. Its totient is φ = 44888949339520.

The previous prime is 52615028133439. The next prime is 52615028133497. The reversal of 52615028133481 is 18433182051625.

It is a de Polignac number, because none of the positive numbers 2k-52615028133481 is a prime.

It is a super-2 number, since 2×526150281334812 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52615022133481) 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, 1961916196 + ... + 1961943013.

It is an arithmetic number, because the mean of its divisors is an integer number (3813991152120).

Almost surely, 252615028133481 is an apocalyptic number.

It is an amenable number.

52615028133481 is a deficient number, since it is larger than the sum of its proper divisors (8408830300439).

52615028133481 is a wasteful number, since it uses less digits than its factorization.

52615028133481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923859296.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 52615028133481 in words is "fifty-two trillion, six hundred fifteen billion, twenty-eight million, one hundred thirty-three thousand, four hundred eighty-one".

Divisors: 1 11 23 53 253 583 1219 13409 3923859209 43162451299 90248761807 207964538077 992736379877 2287609918847 4783184375771 52615028133481