Search a number
-
+
10797760781 = 19568303199
BaseRepresentation
bin10100000111001100…
…01100000100001101
31000212111220002011222
422003212030010031
5134103211321111
64543241253125
7531402311063
oct120346140415
930774802158
1010797760781
114641066545
1221141941a5
131031068082
147460a8033
15432e417db
hex28398c10d

10797760781 has 4 divisors (see below), whose sum is σ = 11366064000. Its totient is φ = 10229457564.

The previous prime is 10797760759. The next prime is 10797760811. The reversal of 10797760781 is 18706779701.

It is a happy number.

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 10797760781 - 218 = 10797498637 is a prime.

It is a super-2 number, since 2×107977607812 (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 (10797760741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284151581 + ... + 284151618.

It is an arithmetic number, because the mean of its divisors is an integer number (2841516000).

Almost surely, 210797760781 is an apocalyptic number.

It is an amenable number.

10797760781 is a deficient number, since it is larger than the sum of its proper divisors (568303219).

10797760781 is an equidigital number, since it uses as much as digits as its factorization.

10797760781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568303218.

The product of its (nonzero) digits is 1037232, while the sum is 53.

The spelling of 10797760781 in words is "ten billion, seven hundred ninety-seven million, seven hundred sixty thousand, seven hundred eighty-one".

Divisors: 1 19 568303199 10797760781