Search a number
-
+
6469774074 = 234173230849
BaseRepresentation
bin1100000011010000…
…01110101011111010
3121200220000120120000
412001220032223322
5101222230232244
62545553413430
7316220113041
oct60150165372
917626016500
106469774074
112820023025
12130686a276
137c14ca0aa
14455377558
1527ced0169
hex181a0eafa

6469774074 has 40 divisors (see below), whose sum is σ = 14580947700. Its totient is φ = 2144116224.

The previous prime is 6469774063. The next prime is 6469774079. The reversal of 6469774074 is 4704779646.

6469774074 is a `hidden beast` number, since 6 + 469 + 77 + 40 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6163349049 + 306425025 = 78507^2 + 17505^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6469774074.

It is not an unprimeable number, because it can be changed into a prime (6469774079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87399 + ... + 143450.

Almost surely, 26469774074 is an apocalyptic number.

6469774074 is an abundant number, since it is smaller than the sum of its proper divisors (8111173626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6469774074 is a wasteful number, since it uses less digits than its factorization.

6469774074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231036 (or 231027 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The square root of 6469774074 is about 80434.9058183075. The cubic root of 6469774074 is about 1863.3582980652.

The spelling of 6469774074 in words is "six billion, four hundred sixty-nine million, seven hundred seventy-four thousand, seventy-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 173 346 519 1038 1557 3114 4671 9342 14013 28026 230849 461698 692547 1385094 2077641 4155282 6232923 12465846 18698769 37397538 39936877 79873754 119810631 239621262 359431893 718863786 1078295679 2156591358 3234887037 6469774074