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115849712140 = 22529199740883
BaseRepresentation
bin110101111100100101…
…1100101001000001100
3102002000202200010212021
41223321023211020030
53344230011242030
6125115353215524
711240602206541
oct1537113451014
9362022603767
10115849712140
114514a162458
121a551a015a4
13ac033c5a36
145870070bc8
15303094597a
hex1af92e520c

115849712140 has 24 divisors (see below), whose sum is σ = 251673513840. Its totient is φ = 44741957568.

The previous prime is 115849712123. The next prime is 115849712219. The reversal of 115849712140 is 41217948511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99869862 + ... + 99871021.

It is an arithmetic number, because the mean of its divisors is an integer number (10486396410).

Almost surely, 2115849712140 is an apocalyptic number.

115849712140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115849712140 is an abundant number, since it is smaller than the sum of its proper divisors (135823801700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115849712140 is a wasteful number, since it uses less digits than its factorization.

115849712140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199740921 (or 199740919 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 115849712140 in words is "one hundred fifteen billion, eight hundred forty-nine million, seven hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 199740883 399481766 798963532 998704415 1997408830 3994817660 5792485607 11584971214 23169942428 28962428035 57924856070 115849712140