Search a number
-
+
9002258981 = 31290395451
BaseRepresentation
bin10000110001001001…
…11001001000100101
3212020101100010202022
420120210321020211
5121414034241411
64045141352525
7436040640002
oct103044711045
925211303668
109002258981
1138aa5a4461
1218b2a08745
13b06091581
146158428a9
1537a4c5edb
hex218939225

9002258981 has 4 divisors (see below), whose sum is σ = 9292654464. Its totient is φ = 8711863500.

The previous prime is 9002258971. The next prime is 9002259047. The reversal of 9002258981 is 1898522009.

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 9002258981 - 226 = 8935150117 is a prime.

It is a super-2 number, since 2×90022589812 (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 (9002258911) 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, 145197695 + ... + 145197756.

It is an arithmetic number, because the mean of its divisors is an integer number (2323163616).

Almost surely, 29002258981 is an apocalyptic number.

It is an amenable number.

9002258981 is a deficient number, since it is larger than the sum of its proper divisors (290395483).

9002258981 is a wasteful number, since it uses less digits than its factorization.

9002258981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290395482.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 9002258981 is about 94880.2349333095. The cubic root of 9002258981 is about 2080.2578407095.

The spelling of 9002258981 in words is "nine billion, two million, two hundred fifty-eight thousand, nine hundred eighty-one".

Divisors: 1 31 290395451 9002258981