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51025104351 = 3213436112003
BaseRepresentation
bin101111100001010101…
…010100110111011111
311212201000201212102200
4233201111110313133
51313444411314401
635235101022543
73454310142114
oct574125246737
9155630655380
1051025104351
111a704383131
129a80254a53
134a72259750
14268093490b
1514d9884686
hexbe1554ddf

51025104351 has 12 divisors (see below), whose sum is σ = 79372384728. Its totient is φ = 31400064144.

The previous prime is 51025104337. The next prime is 51025104373. The reversal of 51025104351 is 15340152015.

51025104351 is a `hidden beast` number, since 5 + 102 + 510 + 43 + 5 + 1 = 666.

It is not a de Polignac number, because 51025104351 - 218 = 51024842207 is a prime.

It is a super-2 number, since 2×510251043512 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025104451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218055885 + ... + 218056118.

It is an arithmetic number, because the mean of its divisors is an integer number (6614365394).

Almost surely, 251025104351 is an apocalyptic number.

51025104351 is a deficient number, since it is larger than the sum of its proper divisors (28347280377).

51025104351 is a wasteful number, since it uses less digits than its factorization.

51025104351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436112022 (or 436112019 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 51025104351 its reverse (15340152015), we get a palindrome (66365256366).

The spelling of 51025104351 in words is "fifty-one billion, twenty-five million, one hundred four thousand, three hundred fifty-one".

Divisors: 1 3 9 13 39 117 436112003 1308336009 3925008027 5669456039 17008368117 51025104351