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23130123194 = 217857793813
BaseRepresentation
bin10101100010101010…
…011010101110111010
32012200222102000001102
4111202222122232322
5334332302420234
614343102451402
71446120542333
oct254252325672
965628360042
1023130123194
11989a3959a2
124596293b62
13224801ba39
141195cc128a
15905964c7e
hex562a9abba

23130123194 has 16 divisors (see below), whose sum is σ = 36778990248. Its totient is φ = 10872049152.

The previous prime is 23130123187. The next prime is 23130123239. The reversal of 23130123194 is 49132103132.

It can be written as a sum of positive squares in 4 ways, for example, as 22197126169 + 932997025 = 148987^2 + 30545^2 .

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 7 ways as a sum of consecutive naturals, for example, 367769 + ... + 426044.

Almost surely, 223130123194 is an apocalyptic number.

23130123194 is a deficient number, since it is larger than the sum of its proper divisors (13648867054).

23130123194 is a wasteful number, since it uses less digits than its factorization.

23130123194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794689.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 23130123194 in words is "twenty-three billion, one hundred thirty million, one hundred twenty-three thousand, one hundred ninety-four".

Divisors: 1 2 17 34 857 1714 14569 29138 793813 1587626 13494821 26989642 680297741 1360595482 11565061597 23130123194