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9405109012 = 2213180867481
BaseRepresentation
bin10001100001001011…
…01001001100010100
3220021110101001002211
420300211221030110
5123230201442022
64153132043204
7452032051615
oct106045511424
926243331084
109405109012
113a96a36672
1219a5903504
13b6b690180
14653149c0c
153a0a4de77
hex230969314

9405109012 has 12 divisors (see below), whose sum is σ = 17725013236. Its totient is φ = 4340819520.

The previous prime is 9405109001. The next prime is 9405109031. The reversal of 9405109012 is 2109015049.

It can be written as a sum of positive squares in 2 ways, for example, as 822198276 + 8582910736 = 28674^2 + 92644^2 .

It is a super-2 number, since 2×94051090122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 90433689 + ... + 90433792.

Almost surely, 29405109012 is an apocalyptic number.

It is an amenable number.

9405109012 is a deficient number, since it is larger than the sum of its proper divisors (8319904224).

9405109012 is a wasteful number, since it uses less digits than its factorization.

9405109012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180867498 (or 180867496 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 9405109012 is about 96979.9412868455. The cubic root of 9405109012 is about 2110.8365775917.

The spelling of 9405109012 in words is "nine billion, four hundred five million, one hundred nine thousand, twelve".

Divisors: 1 2 4 13 26 52 180867481 361734962 723469924 2351277253 4702554506 9405109012