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192713239 = 6722712671
BaseRepresentation
bin10110111110010…
…01001000010111
3111102121211212101
423133021020113
5343313310424
631042302531
74530015115
oct1337111027
9442554771
10192713239
1199866344
1254657a47
1330c05704
141b846ab5
1511dba344
hexb7c9217

192713239 has 8 divisors (see below), whose sum is σ = 196466688. Its totient is φ = 188985720.

The previous prime is 192713237. The next prime is 192713273. The reversal of 192713239 is 932317291.

It is a happy number.

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 192713239 - 21 = 192713237 is a prime.

It is a super-2 number, since 2×1927132392 = 74276784971742242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 192713198 and 192713207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192713233) 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, 8874 + ... + 21544.

It is an arithmetic number, because the mean of its divisors is an integer number (24558336).

Almost surely, 2192713239 is an apocalyptic number.

192713239 is a deficient number, since it is larger than the sum of its proper divisors (3753449).

192713239 is a wasteful number, since it uses less digits than its factorization.

192713239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12965.

The product of its digits is 20412, while the sum is 37.

The square root of 192713239 is about 13882.1193987085. The cubic root of 192713239 is about 577.6132986105.

The spelling of 192713239 in words is "one hundred ninety-two million, seven hundred thirteen thousand, two hundred thirty-nine".

Divisors: 1 67 227 12671 15209 848957 2876317 192713239