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50013161165 = 51117915973181
BaseRepresentation
bin101110100101000001…
…000100011011001101
311210002111120211100102
4232211001010123031
51304411332124130
634550431340445
73420241566332
oct564501043315
9153074524312
1050013161165
111a235142250
129839381725
1349406ca3b6
1425c6398989
15147aae4645
hexba50446cd

50013161165 has 32 divisors (see below), whose sum is σ = 65899474560. Its totient is φ = 36135993600.

The previous prime is 50013161137. The next prime is 50013161167. The reversal of 50013161165 is 56116131005.

It is not a de Polignac number, because 50013161165 - 226 = 49946052301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50013161167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15720875 + ... + 15724055.

It is an arithmetic number, because the mean of its divisors is an integer number (2059358580).

Almost surely, 250013161165 is an apocalyptic number.

50013161165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50013161165 is a deficient number, since it is larger than the sum of its proper divisors (15886313395).

50013161165 is a wasteful number, since it uses less digits than its factorization.

50013161165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973.

The product of its (nonzero) digits is 2700, while the sum is 29.

The spelling of 50013161165 in words is "fifty billion, thirteen million, one hundred sixty-one thousand, one hundred sixty-five".

Divisors: 1 5 11 55 179 895 1597 1969 3181 7985 9845 15905 17567 34991 87835 174955 285863 569399 1429315 2846995 3144493 5080057 6263389 15722465 25400285 31316945 55880627 279403135 909330203 4546651015 10002632233 50013161165