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11982994892 = 22111371987889
BaseRepresentation
bin10110010100011110…
…11111110111001100
31010221010010012201122
423022033133313030
5144020121314032
65301021100112
7602643530111
oct131217376714
933833105648
1011982994892
11509a0a7470
1223a50b7638
13118c78c62b
14819672908
154a2012012
hex2ca3dfdcc

11982994892 has 24 divisors (see below), whose sum is σ = 23043620880. Its totient is φ = 5407055360.

The previous prime is 11982994853. The next prime is 11982994927. The reversal of 11982994892 is 29849928911.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987917 + ... + 999972.

It is an arithmetic number, because the mean of its divisors is an integer number (960150870).

Almost surely, 211982994892 is an apocalyptic number.

It is an amenable number.

11982994892 is a deficient number, since it is larger than the sum of its proper divisors (11060625988).

11982994892 is a wasteful number, since it uses less digits than its factorization.

11982994892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988041 (or 1988039 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 62.

The spelling of 11982994892 in words is "eleven billion, nine hundred eighty-two million, nine hundred ninety-four thousand, eight hundred ninety-two".

Divisors: 1 2 4 11 22 44 137 274 548 1507 3014 6028 1987889 3975778 7951556 21866779 43733558 87467116 272340793 544681586 1089363172 2995748723 5991497446 11982994892