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50215472231 = 79635638889
BaseRepresentation
bin101110110001000100…
…110100110001100111
311210121121021021221212
4232301010310301213
51310320130102411
635022455502035
73425246320451
oct566104646147
9153547237855
1050215472231
111a329363581
12989508791b
1349735b35a2
1426051bd2d1
15148d75868b
hexbb1134c67

50215472231 has 4 divisors (see below), whose sum is σ = 50851111200. Its totient is φ = 49579833264.

The previous prime is 50215472201. The next prime is 50215472371. The reversal of 50215472231 is 13227451205.

50215472231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50215472231 is a prime.

It is a super-2 number, since 2×502154722312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50215472201) 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, 317819366 + ... + 317819523.

It is an arithmetic number, because the mean of its divisors is an integer number (12712777800).

Almost surely, 250215472231 is an apocalyptic number.

50215472231 is a deficient number, since it is larger than the sum of its proper divisors (635638969).

50215472231 is an equidigital number, since it uses as much as digits as its factorization.

50215472231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635638968.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 50215472231 in words is "fifty billion, two hundred fifteen million, four hundred seventy-two thousand, two hundred thirty-one".

Divisors: 1 79 635638889 50215472231