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10161961922 = 2721725992
BaseRepresentation
bin10010111011011001…
…10011101111000010
3222020012112011010002
421131230303233002
5131302430240142
64400210040002
7506552152100
oct113554635702
928205464102
1010161961922
114345187442
121b77279002
13c5c416c28
146c5882c70
153e7201a32
hex25db33bc2

10161961922 has 54 divisors (see below), whose sum is σ = 18867474297. Its totient is φ = 4092099648.

The previous prime is 10161961907. The next prime is 10161961933. The reversal of 10161961922 is 22916916101.

10161961922 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9300480721 + 861481201 = 96439^2 + 29351^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=71281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16964579 + ... + 16965177.

Almost surely, 210161961922 is an apocalyptic number.

10161961922 is a deficient number, since it is larger than the sum of its proper divisors (8705512375).

10161961922 is an frugal number, since it uses more digits than its factorization.

10161961922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 10161961922 in words is "ten billion, one hundred sixty-one million, nine hundred sixty-one thousand, nine hundred twenty-two".

Divisors: 1 2 7 14 17 34 49 98 119 238 289 578 599 833 1198 1666 2023 4046 4193 8386 10183 14161 20366 28322 29351 58702 71281 142562 173111 346222 358801 498967 717602 997934 1211777 2423554 2511607 5023214 6099617 8482439 12199234 16964878 17581249 35162498 42697319 85394638 103693489 207386978 298881233 597762466 725854423 1451708846 5080980961 10161961922