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12692470489 = 233591537177
BaseRepresentation
bin10111101001000011…
…11011101011011001
31012202120010022021121
423310201323223121
5201443233023424
65455243405241
7626350135066
oct136441735331
935676108247
1012692470489
115423628a36
122562823821
13127376898a
14885995c6d
154e4456ee4
hex2f487bad9

12692470489 has 8 divisors (see below), whose sum is σ = 13281217920. Its totient is φ = 12106798176.

The previous prime is 12692470481. The next prime is 12692470493. The reversal of 12692470489 is 98407429621.

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 12692470489 - 23 = 12692470481 is a prime.

It is a super-2 number, since 2×126924704892 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12692470481) 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, 760332 + ... + 776845.

It is an arithmetic number, because the mean of its divisors is an integer number (1660152240).

Almost surely, 212692470489 is an apocalyptic number.

It is an amenable number.

12692470489 is a deficient number, since it is larger than the sum of its proper divisors (588747431).

12692470489 is a wasteful number, since it uses less digits than its factorization.

12692470489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537559.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 12692470489 in words is "twelve billion, six hundred ninety-two million, four hundred seventy thousand, four hundred eighty-nine".

Divisors: 1 23 359 8257 1537177 35355071 551846543 12692470489