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52000012152 = 23331121885527
BaseRepresentation
bin110000011011011100…
…010011011101111000
311222012222012022112000
4300123130103131320
51322444000342102
635515524421000
73520415544654
oct603334233570
9158188168460
1052000012152
1120064718860
12a0b2847760
134b9921c77a
1427341cda64
15154525b01c
hexc1b713778

52000012152 has 64 divisors (see below), whose sum is σ = 157575801600. Its totient is φ = 15757578720.

The previous prime is 52000012147. The next prime is 52000012171. The reversal of 52000012152 is 25121000025.

It is a super-2 number, since 2×520000121522 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 10940388 + ... + 10945139.

It is an arithmetic number, because the mean of its divisors is an integer number (2462121900).

Almost surely, 252000012152 is an apocalyptic number.

It is an amenable number.

52000012152 is an abundant number, since it is smaller than the sum of its proper divisors (105575789448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52000012152 is a wasteful number, since it uses less digits than its factorization.

52000012152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21885553 (or 21885543 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 52000012152 its reverse (25121000025), we get a palindrome (77121012177).

The spelling of 52000012152 in words is "fifty-two billion, twelve thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 132 198 216 264 297 396 594 792 1188 2376 21885527 43771054 65656581 87542108 131313162 175084216 196969743 240740797 262626324 393939486 481481594 525252648 590909229 722222391 787878972 962963188 1181818458 1444444782 1575757944 1925926376 2166667173 2363636916 2888889564 4333334346 4727273832 5777779128 6500001519 8666668692 13000003038 17333337384 26000006076 52000012152