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12238941719 = 35334671223
BaseRepresentation
bin10110110010111111…
…10110111000010111
31011120221201122202202
423121133312320113
5200031132113334
65342242555115
7612202200554
oct133137667027
934527648682
1012238941719
115210622074
122456968a9b
131200804a64
14841659a2b
154b971d17e
hex2d97f6e17

12238941719 has 4 divisors (see below), whose sum is σ = 12273613296. Its totient is φ = 12204270144.

The previous prime is 12238941709. The next prime is 12238941811. The reversal of 12238941719 is 91714983221.

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-12238941719 is a prime.

It is a super-2 number, since 2×122389417192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238941709) 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, 17335259 + ... + 17335964.

It is an arithmetic number, because the mean of its divisors is an integer number (3068403324).

Almost surely, 212238941719 is an apocalyptic number.

12238941719 is a deficient number, since it is larger than the sum of its proper divisors (34671577).

12238941719 is an equidigital number, since it uses as much as digits as its factorization.

12238941719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34671576.

The product of its digits is 217728, while the sum is 47.

The spelling of 12238941719 in words is "twelve billion, two hundred thirty-eight million, nine hundred forty-one thousand, seven hundred nineteen".

Divisors: 1 353 34671223 12238941719