Search a number
-
+
50130078831 = 3276113044517
BaseRepresentation
bin101110101011111111…
…000100110001101111
311210101122120212020100
4232223333010301233
51310131300010311
635010205322143
73423161432220
oct565377046157
9153348525210
1050130078831
111a295139218
129870566353
13495b9b5351
1425d7b11247
151485edba56
hexbabfc4c6f

50130078831 has 24 divisors (see below), whose sum is σ = 84111052064. Its totient is φ = 28176154560.

The previous prime is 50130078829. The next prime is 50130078833. The reversal of 50130078831 is 13887003105.

50130078831 is a `hidden beast` number, since 501 + 3 + 0 + 0 + 78 + 83 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (50130078829) and next prime (50130078833).

It is not a de Polignac number, because 50130078831 - 21 = 50130078829 is a prime.

It is a super-2 number, since 2×501300788312 (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 (50130078833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6518416 + ... + 6526101.

Almost surely, 250130078831 is an apocalyptic number.

50130078831 is a deficient number, since it is larger than the sum of its proper divisors (33980973233).

50130078831 is a wasteful number, since it uses less digits than its factorization.

50130078831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13044591 (or 13044588 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 50130078831 in words is "fifty billion, one hundred thirty million, seventy-eight thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 61 63 183 427 549 1281 3843 13044517 39133551 91311619 117400653 273934857 795715537 821804571 2387146611 5570008759 7161439833 16710026277 50130078831