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12992389718 = 27111032772957
BaseRepresentation
bin11000001100110100…
…00010001001010110
31020112110110210010012
430012122002021112
5203102022432333
65545120000222
7636651330140
oct140632021126
936473423105
1012992389718
115567957770
122627160072
1312c0938a89
148b3747c90
1551094be48
hex306682256

12992389718 has 64 divisors (see below), whose sum is σ = 24630248448. Its totient is φ = 4993038720.

The previous prime is 12992389717. The next prime is 12992389733. The reversal of 12992389718 is 81798329921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12992389717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4392296 + ... + 4395252.

It is an arithmetic number, because the mean of its divisors is an integer number (384847632).

Almost surely, 212992389718 is an apocalyptic number.

12992389718 is a deficient number, since it is larger than the sum of its proper divisors (11637858730).

12992389718 is a wasteful number, since it uses less digits than its factorization.

12992389718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357.

The product of its digits is 3919104, while the sum is 59.

The spelling of 12992389718 in words is "twelve billion, nine hundred ninety-two million, three hundred eighty-nine thousand, seven hundred eighteen".

Divisors: 1 2 7 11 14 22 77 103 154 206 277 554 721 1133 1442 1939 2266 2957 3047 3878 5914 6094 7931 15862 20699 21329 28531 32527 41398 42658 57062 65054 199717 227689 304571 313841 399434 455378 609142 627682 819089 1638178 2131997 2196887 3350281 4263994 4393774 5733623 6700562 9009979 11467246 18019958 23451967 46903934 63069853 84366167 126139706 168732334 590563169 928027837 1181126338 1856055674 6496194859 12992389718