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12107352749 = 431491889707
BaseRepresentation
bin10110100011010011…
…11000101010101101
31011020210010020122012
423101221320222231
5144243440241444
65321222331005
7606013541342
oct132151705255
934223106565
1012107352749
115153315358
12241a889a65
1311ac480c6b
1482bda47c9
154acdc8b9e
hex2d1a78aad

12107352749 has 8 divisors (see below), whose sum is σ = 12472072800. Its totient is φ = 11746412496.

The previous prime is 12107352707. The next prime is 12107352781. The reversal of 12107352749 is 94725370121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12107352749 - 212 = 12107348653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12107352149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938447 + ... + 951260.

It is an arithmetic number, because the mean of its divisors is an integer number (1559009100).

Almost surely, 212107352749 is an apocalyptic number.

It is an amenable number.

12107352749 is a deficient number, since it is larger than the sum of its proper divisors (364720051).

12107352749 is a wasteful number, since it uses less digits than its factorization.

12107352749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889899.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 12107352749 in words is "twelve billion, one hundred seven million, three hundred fifty-two thousand, seven hundred forty-nine".

Divisors: 1 43 149 6407 1889707 81257401 281566343 12107352749