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12400886645 = 578923916657
BaseRepresentation
bin10111000110010011…
…01000001101110101
31012000020110022102222
423203021220031311
5200344111333040
65410310012125
7616206540320
oct134311501565
935006408388
1012400886645
115293a82754
1224a1047045
131228226864
14858d737b7
154c8a5bbb5
hex2e3268375

12400886645 has 32 divisors (see below), whose sum is σ = 17271014400. Its totient is φ = 8372238336.

The previous prime is 12400886581. The next prime is 12400886669. The reversal of 12400886645 is 54668800421.

It is a happy number.

12400886645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12400886645 - 26 = 12400886581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12400886596 and 12400886605.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 736157 + ... + 752813.

It is an arithmetic number, because the mean of its divisors is an integer number (539719200).

Almost surely, 212400886645 is an apocalyptic number.

It is an amenable number.

12400886645 is a deficient number, since it is larger than the sum of its proper divisors (4870127755).

12400886645 is a wasteful number, since it uses less digits than its factorization.

12400886645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16997.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 12400886645 in words is "twelve billion, four hundred million, eight hundred eighty-six thousand, six hundred forty-five".

Divisors: 1 5 7 35 89 239 445 623 1195 1673 3115 8365 16657 21271 83285 106355 116599 148897 582995 744485 1482473 3981023 7412365 10377311 19905115 27867161 51886555 139335805 354311047 1771555235 2480177329 12400886645