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51080992452 = 22327832442197
BaseRepresentation
bin101111100100101010…
…100001011011000100
311212211220220021111100
4233210222201123010
51314103213224302
635244414540100
73455556162150
oct574452413304
9155756807440
1051080992452
111a732985746
129a96b07630
134a809c6c29
142688122060
1514de723d1c
hexbe4aa16c4

51080992452 has 72 divisors (see below), whose sum is σ = 149345292096. Its totient is φ = 14418725184.

The previous prime is 51080992423. The next prime is 51080992463. The reversal of 51080992452 is 25429908015.

It is a happy number.

51080992452 is a `hidden beast` number, since 5 + 108 + 0 + 9 + 92 + 452 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51080992398 and 51080992407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1200183 + ... + 1242014.

It is an arithmetic number, because the mean of its divisors is an integer number (2074240168).

Almost surely, 251080992452 is an apocalyptic number.

It is an amenable number.

51080992452 is an abundant number, since it is smaller than the sum of its proper divisors (98264299644).

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

51080992452 is a wasteful number, since it uses less digits than its factorization.

51080992452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442297 (or 2442292 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 51080992452 in words is "fifty-one billion, eighty million, nine hundred ninety-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 83 84 126 166 249 252 332 498 581 747 996 1162 1494 1743 2324 2988 3486 5229 6972 10458 20916 2442197 4884394 7326591 9768788 14653182 17095379 21979773 29306364 34190758 43959546 51286137 68381516 87919092 102572274 153858411 202702351 205144548 307716822 405404702 608107053 615433644 810809404 1216214106 1418916457 1824321159 2432428212 2837832914 3648642318 4256749371 5675665828 7297284636 8513498742 12770248113 17026997484 25540496226 51080992452