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12210392239 = 17718258367
BaseRepresentation
bin10110101111100101…
…11100110010101111
31011111222000012020121
423113302330302233
5200001330022424
65335343025411
7611404423123
oct132762746257
934458005217
1012210392239
1151a64a2461
12244929b267
1311c791a086
1483b947583
154b6e7dee4
hex2d7cbccaf

12210392239 has 4 divisors (see below), whose sum is σ = 12928650624. Its totient is φ = 11492133856.

The previous prime is 12210392179. The next prime is 12210392263. The reversal of 12210392239 is 93229301221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93229301221 = 713318471603.

It is a cyclic number.

It is not a de Polignac number, because 12210392239 - 27 = 12210392111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210392039) 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, 359129167 + ... + 359129200.

It is an arithmetic number, because the mean of its divisors is an integer number (3232162656).

Almost surely, 212210392239 is an apocalyptic number.

12210392239 is a deficient number, since it is larger than the sum of its proper divisors (718258385).

12210392239 is an equidigital number, since it uses as much as digits as its factorization.

12210392239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718258384.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 12210392239 in words is "twelve billion, two hundred ten million, three hundred ninety-two thousand, two hundred thirty-nine".

Divisors: 1 17 718258367 12210392239