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51512414052 = 22311390245561
BaseRepresentation
bin101111111110011000…
…010000111101100100
311220221222200202200010
4233332120100331210
51320444134222202
635355305450220
73502345203111
oct577630207544
9156858622603
1051512414052
111a934462120
129b974a0970
134b1c1ba598
1426c9545908
15151754276c
hexbfe610f64

51512414052 has 24 divisors (see below), whose sum is σ = 131122508832. Its totient is φ = 15609822400.

The previous prime is 51512414033. The next prime is 51512414077. The reversal of 51512414052 is 25041421515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195122649 + ... + 195122912.

It is an arithmetic number, because the mean of its divisors is an integer number (5463437868).

Almost surely, 251512414052 is an apocalyptic number.

It is an amenable number.

51512414052 is an abundant number, since it is smaller than the sum of its proper divisors (79610094780).

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

51512414052 is a wasteful number, since it uses less digits than its factorization.

51512414052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390245579 (or 390245577 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 51512414052 its reverse (25041421515), we get a palindrome (76553835567).

It can be divided in two parts, 51512 and 414052, that added together give a palindrome (465564).

The spelling of 51512414052 in words is "fifty-one billion, five hundred twelve million, four hundred fourteen thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 390245561 780491122 1170736683 1560982244 2341473366 4292701171 4682946732 8585402342 12878103513 17170804684 25756207026 51512414052