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190430 = 25137139
BaseRepresentation
bin101110011111011110
3100200012222
4232133132
522043210
64025342
71422122
oct563736
9320188
10190430
11120089
1292252
13688a6
144d582
153b655
hex2e7de

190430 has 16 divisors (see below), whose sum is σ = 347760. Its totient is φ = 75072.

The previous prime is 190409. The next prime is 190471. The reversal of 190430 is 34091.

It is a junction number, because it is equal to n+sod(n) for n = 190399 and 190408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (21735).

2190430 is an apocalyptic number.

190430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190430 is a deficient number, since it is larger than the sum of its proper divisors (157330).

190430 is a wasteful number, since it uses less digits than its factorization.

190430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 190430 is about 436.3828594251. The cubic root of 190430 is about 57.5323069864.

The spelling of 190430 in words is "one hundred ninety thousand, four hundred thirty".

Divisors: 1 2 5 10 137 139 274 278 685 695 1370 1390 19043 38086 95215 190430