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2990944631 = 10927439859
BaseRepresentation
bin1011001001000110…
…0011000101110111
321201102222201201002
42302101203011313
522111140212011
61212442153515
7134055416123
oct26221430567
97642881632
102990944631
1112a5345a74
126b57b289b
1338886392c
1420532a583
151278a5c3b
hexb2463177

2990944631 has 4 divisors (see below), whose sum is σ = 3018384600. Its totient is φ = 2963504664.

The previous prime is 2990944577. The next prime is 2990944637. The reversal of 2990944631 is 1364490992.

2990944631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2990944631 - 210 = 2990943607 is a prime.

It is a super-2 number, since 2×29909446312 = 17891499571415452322, which 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 (2990944637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13719821 + ... + 13720038.

It is an arithmetic number, because the mean of its divisors is an integer number (754596150).

Almost surely, 22990944631 is an apocalyptic number.

2990944631 is a deficient number, since it is larger than the sum of its proper divisors (27439969).

2990944631 is a wasteful number, since it uses less digits than its factorization.

2990944631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27439968.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 2990944631 is about 54689.5294457723. The cubic root of 2990944631 is about 1440.7969853543.

The spelling of 2990944631 in words is "two billion, nine hundred ninety million, nine hundred forty-four thousand, six hundred thirty-one".

Divisors: 1 109 27439859 2990944631