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51312410044 = 2278501215573
BaseRepresentation
bin101111110010011101…
…010011110110111100
311220110001100111202021
4233302131103312330
51320041434110134
635323403005524
73464366201050
oct576235236674
9156401314667
1051312410044
111a841577155
129b405098a4
134ab993150c
1426aab61c60
151504bd70b4
hexbf2753dbc

51312410044 has 24 divisors (see below), whose sum is σ = 102637368288. Its totient is φ = 21988344000.

The previous prime is 51312410033. The next prime is 51312410053. The reversal of 51312410044 is 44001421315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130242 + ... + 345814.

It is an arithmetic number, because the mean of its divisors is an integer number (4276557012).

Almost surely, 251312410044 is an apocalyptic number.

It is an amenable number.

51312410044 is an abundant number, since it is smaller than the sum of its proper divisors (51324958244).

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

51312410044 is a wasteful number, since it uses less digits than its factorization.

51312410044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224085 (or 224083 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 51312410044 its reverse (44001421315), we get a palindrome (95313831359).

The spelling of 51312410044 in words is "fifty-one billion, three hundred twelve million, four hundred ten thousand, forty-four".

Divisors: 1 2 4 7 14 28 8501 17002 34004 59507 119014 215573 238028 431146 862292 1509011 3018022 6036044 1832586073 3665172146 7330344292 12828102511 25656205022 51312410044