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1992805204 = 221396739631
BaseRepresentation
bin111011011000111…
…1100101101010100
312010212210222211011
41312301330231110
513040124231304
6525424422004
7100245364465
oct16661745524
95125728734
101992805204
11932983055
12477477904
13259b285a0
1414c944d6c
15b9e40c04
hex76c7cb54

1992805204 has 24 divisors (see below), whose sum is σ = 3759650048. Its totient is φ = 918781920.

The previous prime is 1992805193. The next prime is 1992805211. The reversal of 1992805204 is 4025082991.

It is a congruent 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, 30469 + ... + 70099.

Almost surely, 21992805204 is an apocalyptic number.

It is an amenable number.

1992805204 is a deficient number, since it is larger than the sum of its proper divisors (1766844844).

1992805204 is a wasteful number, since it uses less digits than its factorization.

1992805204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40615 (or 40613 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1992805204 is about 44640.8468109645. The cubic root of 1992805204 is about 1258.4084221125.

The spelling of 1992805204 in words is "one billion, nine hundred ninety-two million, eight hundred five thousand, two hundred four".

Divisors: 1 2 4 13 26 52 967 1934 3868 12571 25142 39631 50284 79262 158524 515203 1030406 2060812 38323177 76646354 153292708 498201301 996402602 1992805204