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12404400245 = 516322767049
BaseRepresentation
bin10111000110101110…
…00010000001110101
31012000111001211012022
423203113002001311
5200401011301440
65410513202525
7616251443126
oct134327020165
935014054168
1012404400245
115295a62556
1224a2260445
131228b86c03
1485960a04d
154c9002cb5
hex2e35c2075

12404400245 has 16 divisors (see below), whose sum is σ = 15042801600. Its totient is φ = 9819045504.

The previous prime is 12404400221. The next prime is 12404400269. The reversal of 12404400245 is 54200440421.

It is an interprime number because it is at equal distance from previous prime (12404400221) and next prime (12404400269).

It is a cyclic number.

It is not a de Polignac number, because 12404400245 - 212 = 12404396149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151481 + ... + 218529.

It is an arithmetic number, because the mean of its divisors is an integer number (940175100).

Almost surely, 212404400245 is an apocalyptic number.

It is an amenable number.

12404400245 is a deficient number, since it is larger than the sum of its proper divisors (2638401355).

12404400245 is a wasteful number, since it uses less digits than its factorization.

12404400245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67444.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 12404400245 its reverse (54200440421), we get a palindrome (66604840666).

The spelling of 12404400245 in words is "twelve billion, four hundred four million, four hundred thousand, two hundred forty-five".

Divisors: 1 5 163 227 815 1135 37001 67049 185005 335245 10928987 15220123 54644935 76100615 2480880049 12404400245