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12642027319 = 157276729101
BaseRepresentation
bin10111100011000011…
…00000011100110111
31012122001012112021001
423301201200130313
5201342324333234
65450242304131
7625165313335
oct136141403467
935561175231
1012642027319
1153a8105269
122549958047
13126618694c
1487cdc4b55
154dece0d14
hex2f1860737

12642027319 has 8 divisors (see below), whose sum is σ = 12727585088. Its totient is φ = 12556533600.

The previous prime is 12642027317. The next prime is 12642027353. The reversal of 12642027319 is 91372024621.

12642027319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12642027319 - 21 = 12642027317 is a prime.

It is a super-2 number, since 2×126420273192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642027311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419869 + ... + 448969.

It is an arithmetic number, because the mean of its divisors is an integer number (1590948136).

Almost surely, 212642027319 is an apocalyptic number.

12642027319 is a deficient number, since it is larger than the sum of its proper divisors (85557769).

12642027319 is a wasteful number, since it uses less digits than its factorization.

12642027319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32025.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 12642027319 in words is "twelve billion, six hundred forty-two million, twenty-seven thousand, three hundred nineteen".

Divisors: 1 157 2767 29101 434419 4568857 80522467 12642027319