Search a number
-
+
12796648756 = 2212757250777
BaseRepresentation
bin10111110101011110…
…10101110100110100
31020000211011002222221
423322233111310310
5202201420230011
65513444332124
7632053501603
oct137257256464
936024132887
1012796648756
115477413681
1225916a4044
13128c213218
14895753a3a
154ed684971
hex2fabd5d34

12796648756 has 12 divisors (see below), whose sum is σ = 22395980068. Its totient is φ = 6397797312.

The previous prime is 12796648691. The next prime is 12796648757. The reversal of 12796648756 is 65784669721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9954052900 + 2842595856 = 99770^2 + 53316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12796648694 and 12796648703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12796648757) 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, 74361 + ... + 176416.

Almost surely, 212796648756 is an apocalyptic number.

It is an amenable number.

12796648756 is a deficient number, since it is larger than the sum of its proper divisors (9599331312).

12796648756 is a wasteful number, since it uses less digits than its factorization.

12796648756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263538 (or 263536 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 12796648756 in words is "twelve billion, seven hundred ninety-six million, six hundred forty-eight thousand, seven hundred fifty-six".

Divisors: 1 2 4 12757 25514 51028 250777 501554 1003108 3199162189 6398324378 12796648756