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51660560151 = 32131149929231
BaseRepresentation
bin110000000111001101…
…011001011100010111
311221100022110100220200
4300013031121130113
51321300100411101
635422121031543
73506124341664
oct600715313427
9157308410820
1051660560151
111aa00048512
12a0190255b3
134b43aba6b5
1427010aaa6b
151525557986
hexc07359717

51660560151 has 24 divisors (see below), whose sum is σ = 75243168000. Its totient is φ = 34153501200.

The previous prime is 51660560141. The next prime is 51660560191. The reversal of 51660560151 is 15106506615.

51660560151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51660560151 - 213 = 51660551959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660560141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1752706 + ... + 1781936.

It is an arithmetic number, because the mean of its divisors is an integer number (3135132000).

Almost surely, 251660560151 is an apocalyptic number.

51660560151 is a deficient number, since it is larger than the sum of its proper divisors (23582607849).

51660560151 is a wasteful number, since it uses less digits than its factorization.

51660560151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30867 (or 30864 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 51660560151 in words is "fifty-one billion, six hundred sixty million, five hundred sixty thousand, one hundred fifty-one".

Divisors: 1 3 9 131 393 1179 1499 4497 13491 29231 87693 196369 263079 589107 1767321 3829261 11487783 34463349 43817269 131451807 394355421 5740062239 17220186717 51660560151