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52645178683 = 431319345851
BaseRepresentation
bin110001000001111001…
…011010110100111011
312000212221012011121201
4301001321122310323
51330304131204213
640103532515031
73542411430646
oct610171326473
9160787164551
1052645178683
1120365915a39
12a25291ba77
134c6caa0706
142795b72a5d
151581beb6dd
hexc41e5ad3b

52645178683 has 8 divisors (see below), whose sum is σ = 54280708416. Its totient is φ = 51028341000.

The previous prime is 52645178671. The next prime is 52645178687. The reversal of 52645178683 is 38687154625.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52645178683 - 233 = 44055244091 is a prime.

It is a super-2 number, since 2×526451786832 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52645178687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4667293 + ... + 4678558.

It is an arithmetic number, because the mean of its divisors is an integer number (6785088552).

Almost surely, 252645178683 is an apocalyptic number.

52645178683 is a deficient number, since it is larger than the sum of its proper divisors (1635529733).

52645178683 is a wasteful number, since it uses less digits than its factorization.

52645178683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9346025.

The product of its digits is 9676800, while the sum is 55.

The spelling of 52645178683 in words is "fifty-two billion, six hundred forty-five million, one hundred seventy-eight thousand, six hundred eighty-three".

Divisors: 1 43 131 5633 9345851 401871593 1224306481 52645178683