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12345692901 = 341112988903
BaseRepresentation
bin10110111111101110…
…00101001011100101
31011212101121011212020
423133313011023211
5200240444133101
65401015013353
7614636441523
oct133767051345
934771534766
1012345692901
115265904893
12248666a259
131219970439
148518c7313
154c3ca8136
hex2dfdc52e5

12345692901 has 16 divisors (see below), whose sum is σ = 16877535360. Its totient is φ = 8022516480.

The previous prime is 12345692897. The next prime is 12345692903. The reversal of 12345692901 is 10929654321.

It is not a de Polignac number, because 12345692901 - 22 = 12345692897 is a prime.

It is a super-2 number, since 2×123456929012 (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345692903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94416 + ... + 183318.

It is an arithmetic number, because the mean of its divisors is an integer number (1054845960).

Almost surely, 212345692901 is an apocalyptic number.

It is an amenable number.

12345692901 is a deficient number, since it is larger than the sum of its proper divisors (4531842459).

12345692901 is a wasteful number, since it uses less digits than its factorization.

12345692901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90076.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 12345692901 in words is "twelve billion, three hundred forty-five million, six hundred ninety-two thousand, nine hundred one".

Divisors: 1 3 41 123 1129 3387 46289 88903 138867 266709 3645023 10935069 100371487 301114461 4115230967 12345692901