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1931193384 = 23380466391
BaseRepresentation
bin111001100011011…
…1010110000101000
311222120212210021220
41303012322300220
512423341142014
6515344102040
765566605261
oct16306726050
94876783256
101931193384
1190112119a
1245a904920
1324a135aa3
141446a7968
15b48206a9
hex731bac28

1931193384 has 16 divisors (see below), whose sum is σ = 4827983520. Its totient is φ = 643731120.

The previous prime is 1931193377. The next prime is 1931193403. The reversal of 1931193384 is 4833911391.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40233172 + ... + 40233219.

It is an arithmetic number, because the mean of its divisors is an integer number (301748970).

Almost surely, 21931193384 is an apocalyptic number.

It is an amenable number.

1931193384 is an abundant number, since it is smaller than the sum of its proper divisors (2896790136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1931193384 is a wasteful number, since it uses less digits than its factorization.

1931193384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80466400 (or 80466396 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 1931193384 is about 43945.3454190543. The cubic root of 1931193384 is about 1245.3036326580.

The spelling of 1931193384 in words is "one billion, nine hundred thirty-one million, one hundred ninety-three thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 80466391 160932782 241399173 321865564 482798346 643731128 965596692 1931193384