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52112221125 = 353138965923
BaseRepresentation
bin110000100010001000…
…010110001111000101
311222111210100010021220
4300202020112033011
51323211212034000
635535013430553
73523250366556
oct604210261705
9158453303256
1052112221125
1120111a99048
12a12433b459
134bb6549403
14274507c32d
1515500231a0
hexc222163c5

52112221125 has 16 divisors (see below), whose sum is σ = 86714736576. Its totient is φ = 27793184400.

The previous prime is 52112221087. The next prime is 52112221171.

52112221125 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52112221125 - 29 = 52112220613 is a prime.

It is a super-3 number, since 3×521122211253 (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52112221095 and 52112221104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69482587 + ... + 69483336.

It is an arithmetic number, because the mean of its divisors is an integer number (5419671036).

Almost surely, 252112221125 is an apocalyptic number.

It is an amenable number.

52112221125 is a deficient number, since it is larger than the sum of its proper divisors (34602515451).

52112221125 is a wasteful number, since it uses less digits than its factorization.

52112221125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138965941 (or 138965931 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The spelling of 52112221125 in words is "fifty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 138965923 416897769 694829615 2084488845 3474148075 10422444225 17370740375 52112221125