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192331993 = 740076857
BaseRepresentation
bin10110111011011…
…00000011011001
3111101220110220011
423131230003121
5343214110433
631030201521
74523536450
oct1335540331
9441813804
10192331993
1199625967
12544b32a1
1330b01019
141b787b97
1511d423cd
hexb76c0d9

192331993 has 8 divisors (see below), whose sum is σ = 219894912. Its totient is φ = 164790816.

The previous prime is 192331961. The next prime is 192332011. The reversal of 192331993 is 399133291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 192331993 - 25 = 192331961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192331933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24621 + ... + 31477.

It is an arithmetic number, because the mean of its divisors is an integer number (27486864).

Almost surely, 2192331993 is an apocalyptic number.

It is an amenable number.

192331993 is a deficient number, since it is larger than the sum of its proper divisors (27562919).

192331993 is an equidigital number, since it uses as much as digits as its factorization.

192331993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871.

The product of its digits is 39366, while the sum is 40.

The square root of 192331993 is about 13868.3810518748. The cubic root of 192331993 is about 577.2321482949.

The spelling of 192331993 in words is "one hundred ninety-two million, three hundred thirty-one thousand, nine hundred ninety-three".

Divisors: 1 7 4007 6857 28049 47999 27475999 192331993