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50644065461 = 11311071388003
BaseRepresentation
bin101111001010100111…
…110001110010110101
311211201110202002100012
4233022213301302311
51312204340043321
635133210030005
73442002311423
oct571247616265
9154643662305
1050644065461
111a529288a60
129994718305
134a11326752
1426460a8113
1514b61b905b
hexbca9f1cb5

50644065461 has 16 divisors (see below), whose sum is σ = 57563301888. Its totient is φ = 44138463600.

The previous prime is 50644065421. The next prime is 50644065467. The reversal of 50644065461 is 16456044605.

It is a de Polignac number, because none of the positive numbers 2k-50644065461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50644065467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657515 + ... + 730488.

It is an arithmetic number, because the mean of its divisors is an integer number (3597706368).

Almost surely, 250644065461 is an apocalyptic number.

It is an amenable number.

50644065461 is a deficient number, since it is larger than the sum of its proper divisors (6919236427).

50644065461 is a wasteful number, since it uses less digits than its factorization.

50644065461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388152.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 50644065461 in words is "fifty billion, six hundred forty-four million, sixty-five thousand, four hundred sixty-one".

Divisors: 1 11 31 107 341 1177 3317 36487 1388003 15268033 43028093 148516321 473309023 1633679531 4604005951 50644065461