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12671813290 = 251814969821
BaseRepresentation
bin10111100110100110…
…01000011010101010
31012201010020210221011
423303103020122222
5201422441011130
65453224534134
7626006431033
oct136323103252
935633223834
1012671813290
1154129a9974
12255792134a
13126c3b5396
14882d39a8a
154e272652a
hex2f34c86aa

12671813290 has 16 divisors (see below), whose sum is σ = 22810847400. Its totient is φ = 5068373440.

The previous prime is 12671813263. The next prime is 12671813309. The reversal of 12671813290 is 9231817621.

12671813290 is digitally balanced in base 2, 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 4 ways, for example, as 6042108361 + 6629704929 = 77731^2 + 81423^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146580 + ... + 216400.

Almost surely, 212671813290 is an apocalyptic number.

12671813290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12671813290 is a deficient number, since it is larger than the sum of its proper divisors (10139034110).

12671813290 is a wasteful number, since it uses less digits than its factorization.

12671813290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87977.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 12671813290 in words is "twelve billion, six hundred seventy-one million, eight hundred thirteen thousand, two hundred ninety".

Divisors: 1 2 5 10 18149 36298 69821 90745 139642 181490 349105 698210 1267181329 2534362658 6335906645 12671813290