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50640438941 = 103491654747
BaseRepresentation
bin101111001010011001…
…111100011010011101
311211201012220211200122
4233022121330122131
51312202423021231
635133000204325
73441626425451
oct571231743235
9154635824618
1050640438941
111a527231334
1299934696a5
134a10656b91
142645802661
1514b5bee77b
hexbca67c69d

50640438941 has 4 divisors (see below), whose sum is σ = 51132093792. Its totient is φ = 50148784092.

The previous prime is 50640438917. The next prime is 50640438977. The reversal of 50640438941 is 14983404605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50640438941 - 226 = 50573330077 is a prime.

It is a super-2 number, since 2×506404389412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50640438892 and 50640438901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50640438341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245827271 + ... + 245827476.

It is an arithmetic number, because the mean of its divisors is an integer number (12783023448).

Almost surely, 250640438941 is an apocalyptic number.

It is an amenable number.

50640438941 is a deficient number, since it is larger than the sum of its proper divisors (491654851).

50640438941 is a wasteful number, since it uses less digits than its factorization.

50640438941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491654850.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 50640438941 in words is "fifty billion, six hundred forty million, four hundred thirty-eight thousand, nine hundred forty-one".

Divisors: 1 103 491654747 50640438941