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12420344110 = 254339286249
BaseRepresentation
bin10111001000100111…
…10110100100101110
31012001121001212001211
423210103312210232
5200414102002420
65412243025034
7616534116526
oct134423664456
935047055054
1012420344110
1152a3a623a9
1224a766b17a
13122c27a055
1485b79a686
154ca601e5a
hex2e44f692e

12420344110 has 16 divisors (see below), whose sum is σ = 22361850000. Its totient is φ = 4966975296.

The previous prime is 12420344107. The next prime is 12420344117. The reversal of 12420344110 is 1144302421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420344117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99735 + ... + 186514.

It is an arithmetic number, because the mean of its divisors is an integer number (1397615625).

Almost surely, 212420344110 is an apocalyptic number.

12420344110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12420344110 is a deficient number, since it is larger than the sum of its proper divisors (9941505890).

12420344110 is a wasteful number, since it uses less digits than its factorization.

12420344110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290595.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12420344110 its reverse (1144302421), we get a palindrome (13564646531).

The spelling of 12420344110 in words is "twelve billion, four hundred twenty million, three hundred forty-four thousand, one hundred ten".

Divisors: 1 2 5 10 4339 8678 21695 43390 286249 572498 1431245 2862490 1242034411 2484068822 6210172055 12420344110