Search a number
-
+
12695865263429 = 21121960107591
BaseRepresentation
bin1011100010111111110010…
…0010100000010101000101
31122221201020200100010020212
42320233330202200111011
53131002113001412204
643000222221405205
72450150243113325
oct270577442402505
948851220303225
1012695865263429
114055316a62737
121510663709805
137112a435172a
1431c6a9ad9285
151703adedac6e
hexb8bfc8a0545

12695865263429 has 4 divisors (see below), whose sum is σ = 12695925582240. Its totient is φ = 12695804944620.

The previous prime is 12695865263399. The next prime is 12695865263443. The reversal of 12695865263429 is 92436256859621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12695865263429 - 212 = 12695865259333 is a prime.

It is a super-2 number, since 2×126958652634292 (a number of 27 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 (12695865263129) 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, 29842577 + ... + 30265014.

It is an arithmetic number, because the mean of its divisors is an integer number (3173981395560).

Almost surely, 212695865263429 is an apocalyptic number.

It is an amenable number.

12695865263429 is a deficient number, since it is larger than the sum of its proper divisors (60318811).

12695865263429 is an equidigital number, since it uses as much as digits as its factorization.

12695865263429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60318810.

The product of its digits is 335923200, while the sum is 68.

The spelling of 12695865263429 in words is "twelve trillion, six hundred ninety-five billion, eight hundred sixty-five million, two hundred sixty-three thousand, four hundred twenty-nine".

Divisors: 1 211219 60107591 12695865263429