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12650152639 = 16775749417
BaseRepresentation
bin10111100100000001…
…00000001010111111
31012122121111100002211
423302000200022333
5201401414341024
65451132401251
7625324344325
oct136200401277
935577440084
1012650152639
115401754a03
122550616227
131267a70127
148800dbd15
154e0898594
hex2f20202bf

12650152639 has 4 divisors (see below), whose sum is σ = 12725902224. Its totient is φ = 12574403056.

The previous prime is 12650152631. The next prime is 12650152649. The reversal of 12650152639 is 93625105621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93625105621 = 631271483123.

It is a cyclic number.

It is not a de Polignac number, because 12650152639 - 23 = 12650152631 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 (12650152631) 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, 37874542 + ... + 37874875.

It is an arithmetic number, because the mean of its divisors is an integer number (3181475556).

Almost surely, 212650152639 is an apocalyptic number.

12650152639 is a deficient number, since it is larger than the sum of its proper divisors (75749585).

12650152639 is an equidigital number, since it uses as much as digits as its factorization.

12650152639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75749584.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 12650152639 in words is "twelve billion, six hundred fifty million, one hundred fifty-two thousand, six hundred thirty-nine".

Divisors: 1 167 75749417 12650152639