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51112031441 = 647473316691
BaseRepresentation
bin101111100110100000…
…111011010011010001
311212221002022012222112
4233212200323103101
51314134140001231
635251444115105
73456414045632
oct574640732321
9155832265875
1051112031441
111a7494557a9
129aa5395a95
134a87273ab3
14268c2c1889
1514e230592b
hexbe683b4d1

51112031441 has 8 divisors (see below), whose sum is σ = 51204913344. Its totient is φ = 51019193680.

The previous prime is 51112031437. The next prime is 51112031473. The reversal of 51112031441 is 14413021115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51112031441 - 22 = 51112031437 is a prime.

It is a super-2 number, since 2×511120314412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51112031431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3053906 + ... + 3070596.

It is an arithmetic number, because the mean of its divisors is an integer number (6400614168).

Almost surely, 251112031441 is an apocalyptic number.

It is an amenable number.

51112031441 is a deficient number, since it is larger than the sum of its proper divisors (92881903).

51112031441 is a wasteful number, since it uses less digits than its factorization.

51112031441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22071.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 51112031441 its reverse (14413021115), we get a palindrome (65525052556).

The spelling of 51112031441 in words is "fifty-one billion, one hundred twelve million, thirty-one thousand, four hundred forty-one".

Divisors: 1 647 4733 16691 3062251 10799077 78998503 51112031441