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52665112045 = 5721316535357
BaseRepresentation
bin110001000011000101…
…011101010111101101
312000221022200220001101
4301003011131113231
51330324232041140
640105524043101
73543043031500
oct610305352755
9160838626041
1052665112045
11203760a0197
12a259533491
134c73c5c6c0
142798681137
15158383799a
hexc4315d5ed

52665112045 has 24 divisors (see below), whose sum is σ = 79171294104. Its totient is φ = 33335277696.

The previous prime is 52665112033. The next prime is 52665112051. The reversal of 52665112045 is 54021156625.

It can be written as a sum of positive squares in 4 ways, for example, as 241056676 + 52424055369 = 15526^2 + 228963^2 .

It is not a de Polignac number, because 52665112045 - 229 = 52128241133 is a prime.

It is a super-2 number, since 2×526651120452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52665111995 and 52665112013.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8264494 + ... + 8270863.

It is an arithmetic number, because the mean of its divisors is an integer number (3298803921).

Almost surely, 252665112045 is an apocalyptic number.

It is an amenable number.

52665112045 is a deficient number, since it is larger than the sum of its proper divisors (26506182059).

52665112045 is a wasteful number, since it uses less digits than its factorization.

52665112045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16535389 (or 16535382 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 52665112045 in words is "fifty-two billion, six hundred sixty-five million, one hundred twelve thousand, forty-five".

Divisors: 1 5 7 13 35 49 65 91 245 455 637 3185 16535357 82676785 115747499 214959641 578737495 810232493 1074798205 1504717487 4051162465 7523587435 10533022409 52665112045