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12404202211 = 54091229321
BaseRepresentation
bin10111000110101100…
…10001101011100011
31012000110200202112201
423203112101223203
5200400433432321
65410505034031
7616246656562
oct134326215343
935013622481
1012404202211
115295937795
1224a2185917
131228b17a2b
14859597bd9
154c8eb4291
hex2e3591ae3

12404202211 has 4 divisors (see below), whose sum is σ = 12404485624. Its totient is φ = 12403918800.

The previous prime is 12404202137. The next prime is 12404202227. The reversal of 12404202211 is 11220240421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12404202211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404202511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60570 + ... + 168751.

It is an arithmetic number, because the mean of its divisors is an integer number (3101121406).

Almost surely, 212404202211 is an apocalyptic number.

12404202211 is a deficient number, since it is larger than the sum of its proper divisors (283413).

12404202211 is an equidigital number, since it uses as much as digits as its factorization.

12404202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283412.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12404202211 its reverse (11220240421), we get a palindrome (23624442632).

The spelling of 12404202211 in words is "twelve billion, four hundred four million, two hundred two thousand, two hundred eleven".

Divisors: 1 54091 229321 12404202211