Search a number
-
+
12797495051 = 1131263142697
BaseRepresentation
bin10111110101100101…
…00100011100001011
31020000212202002220012
423322302210130023
5202202124320201
65513514422135
7632063625125
oct137262443413
936025662805
1012797495051
1154779414a0
122591a3194b
13128c44b4a3
148958d4215
154ed7a05bb
hex2faca470b

12797495051 has 16 divisors (see below), whose sum is σ = 14466152448. Its totient is φ = 11215905600.

The previous prime is 12797495041. The next prime is 12797495089. The reversal of 12797495051 is 15059479721.

It is a cyclic number.

It is not a de Polignac number, because 12797495051 - 26 = 12797494987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12797495041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18335 + ... + 161031.

It is an arithmetic number, because the mean of its divisors is an integer number (904134528).

Almost surely, 212797495051 is an apocalyptic number.

12797495051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12797495051 is a deficient number, since it is larger than the sum of its proper divisors (1668657397).

12797495051 is a wasteful number, since it uses less digits than its factorization.

12797495051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143002.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 12797495051 in words is "twelve billion, seven hundred ninety-seven million, four hundred ninety-five thousand, fifty-one".

Divisors: 1 11 31 263 341 2893 8153 89683 142697 1569667 4423607 37529311 48659677 412822421 1163408641 12797495051