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12390361343 = 791577091409
BaseRepresentation
bin10111000101000010…
…11110100011111111
31011222111122120102222
423202201132203333
5200333413030333
65405252235555
7616021222313
oct134241364377
934874576388
1012390361343
115289043958
12249960bbbb
131225cacb79
148577d3b43
154c7b7d298
hex2e285e8ff

12390361343 has 16 divisors (see below), whose sum is σ = 12653904000. Its totient is φ = 12129841152.

The previous prime is 12390361337. The next prime is 12390361409. The reversal of 12390361343 is 34316309321.

It is a Cunningham number, because it is equal to 1113122-1.

It is a cyclic number.

It is not a de Polignac number, because 12390361343 - 26 = 12390361279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390361843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8793023 + ... + 8794431.

It is an arithmetic number, because the mean of its divisors is an integer number (790869000).

Almost surely, 212390361343 is an apocalyptic number.

12390361343 is a deficient number, since it is larger than the sum of its proper divisors (263542657).

12390361343 is a wasteful number, since it uses less digits than its factorization.

12390361343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 12390361343 in words is "twelve billion, three hundred ninety million, three hundred sixty-one thousand, three hundred forty-three".

Divisors: 1 79 157 709 1409 12403 56011 111311 111313 221213 998981 8793727 17475827 78919499 156840017 12390361343