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12453109243 = 222123472389
BaseRepresentation
bin10111001100100001…
…10101110111111011
31012010212201111101021
423212100311313323
5201000443443433
65415413203311
7620412452641
oct134620656773
935125644337
1012453109243
115310501323
1224b6630537
131235cac7c3
14861c89191
154cd42522d
hex2e6435dfb

12453109243 has 8 divisors (see below), whose sum is σ = 12469241840. Its totient is φ = 12436990560.

The previous prime is 12453109217. The next prime is 12453109247. The reversal of 12453109243 is 34290135421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12453109243 - 213 = 12453101051 is a prime.

It is the 111594-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12453109199 and 12453109208.

It is not an unprimeable number, because it can be changed into a prime (12453109247) by changing a digit.

It is a nontrivial repunit in base 111593.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211493 + ... + 5213881.

It is an arithmetic number, because the mean of its divisors is an integer number (1558655230).

Almost surely, 212453109243 is an apocalyptic number.

12453109243 is a deficient number, since it is larger than the sum of its proper divisors (16132597).

12453109243 is a wasteful number, since it uses less digits than its factorization.

12453109243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12453109243 in words is "twelve billion, four hundred fifty-three million, one hundred nine thousand, two hundred forty-three".

Divisors: 1 2221 2347 2389 5212687 5305969 5606983 12453109243