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192139430 = 2578930841
BaseRepresentation
bin10110111001111…
…01000010100110
3111101112200202012
423130331002212
5343141430210
631022114222
74522105160
oct1334750246
9441480665
10192139430
119950421a
125441b972
1330a64492
141b737930
1511d05305
hexb73d0a6

192139430 has 32 divisors (see below), whose sum is σ = 399712320. Its totient is φ = 65134080.

The previous prime is 192139429. The next prime is 192139463. The reversal of 192139430 is 34931291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9191 + ... + 21650.

It is an arithmetic number, because the mean of its divisors is an integer number (12491010).

Almost surely, 2192139430 is an apocalyptic number.

192139430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

192139430 is an abundant number, since it is smaller than the sum of its proper divisors (207572890).

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

192139430 is a wasteful number, since it uses less digits than its factorization.

192139430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30944.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 192139430 is about 13861.4367942144. The cubic root of 192139430 is about 577.0394421504.

The spelling of 192139430 in words is "one hundred ninety-two million, one hundred thirty-nine thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 89 178 445 623 890 1246 3115 6230 30841 61682 154205 215887 308410 431774 1079435 2158870 2744849 5489698 13724245 19213943 27448490 38427886 96069715 192139430