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9002404161 = 32316272
BaseRepresentation
bin10000110001001010…
…11100100101000001
3212020101121111220100
420120211130211001
5121414103413121
64045144433013
7436042113162
oct103045344501
925211544810
109002404161
1138aa693543
1218b2a78769
13b0611268a
1461587d769
1537a504026
hex21895c941

9002404161 has 9 divisors (see below), whose sum is σ = 13003883841. Its totient is φ = 6001413012.

The previous prime is 9002404129. The next prime is 9002404163. The reversal of 9002404161 is 1614042009.

The square root of 9002404161 is 94881.

It is a perfect power (a square), and thus also a powerful number.

9002404161 is a `hidden beast` number, since 9 + 0 + 0 + 240 + 416 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 9002404161 - 25 = 9002404129 is a prime.

It is a super-2 number, since 2×90024041612 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9002404163) 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 8 ways as a sum of consecutive naturals, for example, 268830 + ... + 300456.

Almost surely, 29002404161 is an apocalyptic number.

9002404161 is the 94881-st square number.

9002404161 is the 47441-st centered octagonal number.

It is an amenable number.

9002404161 is a deficient number, since it is larger than the sum of its proper divisors (4001479680).

9002404161 is an frugal number, since it uses more digits than its factorization.

9002404161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63260 (or 31630 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The cubic root of 9002404161 is about 2080.2690234659.

It can be divided in two parts, 900240 and 4161, that added together give a square (904401 = 9512).

The spelling of 9002404161 in words is "nine billion, two million, four hundred four thousand, one hundred sixty-one".

Divisors: 1 3 9 31627 94881 284643 1000267129 3000801387 9002404161