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12787913674 = 257711081381
BaseRepresentation
bin10111110100011100…
…00001001111001010
31020000012201022201101
423322032001033022
5202142201214144
65512533212014
7631616321104
oct137216011712
936005638641
1012787913674
1154724978a8
12258a79100a
13128a475333
1489451c574
154eca0b6d4
hex2fa3813ca

12787913674 has 8 divisors (see below), whose sum is σ = 19215116388. Its totient is φ = 6382874880.

The previous prime is 12787913657. The next prime is 12787913687. The reversal of 12787913674 is 47631978721.

12787913674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12733994025 + 53919649 = 112845^2 + 7343^2 .

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

It is a super-2 number, since 2×127879136742 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5539537 + ... + 5541844.

Almost surely, 212787913674 is an apocalyptic number.

12787913674 is a deficient number, since it is larger than the sum of its proper divisors (6427202714).

12787913674 is a wasteful number, since it uses less digits than its factorization.

12787913674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081960.

The product of its digits is 3556224, while the sum is 55.

The spelling of 12787913674 in words is "twelve billion, seven hundred eighty-seven million, nine hundred thirteen thousand, six hundred seventy-four".

Divisors: 1 2 577 1154 11081381 22162762 6393956837 12787913674