Search a number
-
+
6949770969 = 317413323659
BaseRepresentation
bin1100111100011110…
…10001011011011001
3122221100012221111210
412132033101123121
5103213120132334
63105341413333
7334136035641
oct63617213331
918840187453
106949770969
112a46a67879
12141b56a249
13869a9a51b
1449d003521
152aa1e65e9
hex19e3d16d9

6949770969 has 16 divisors (see below), whose sum is σ = 10050747840. Its totient is φ = 4254282240.

The previous prime is 6949770959. The next prime is 6949770973. The reversal of 6949770969 is 9690779496.

It is not a de Polignac number, because 6949770969 - 24 = 6949770953 is a prime.

It is a super-2 number, since 2×69497709692 = 96598633043110397922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6949770959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659739 + ... + 1663920.

It is an arithmetic number, because the mean of its divisors is an integer number (628171740).

Almost surely, 26949770969 is an apocalyptic number.

It is an amenable number.

6949770969 is a deficient number, since it is larger than the sum of its proper divisors (3100976871).

6949770969 is a wasteful number, since it uses less digits than its factorization.

6949770969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323720.

The product of its (nonzero) digits is 46294416, while the sum is 66.

The square root of 6949770969 is about 83365.2863546932. The cubic root of 6949770969 is about 1908.3447341428.

The spelling of 6949770969 in words is "six billion, nine hundred forty-nine million, seven hundred seventy thousand, nine hundred sixty-nine".

Divisors: 1 3 17 41 51 123 697 2091 3323659 9970977 56502203 136270019 169506609 408810057 2316590323 6949770969