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193430 = 2523292
BaseRepresentation
bin101111001110010110
3100211100002
4233032112
522142210
64051302
71433636
oct571626
9324302
10193430
11122366
1293b32
136a073
14506c6
153c4a5
hex2f396

193430 has 24 divisors (see below), whose sum is σ = 376272. Its totient is φ = 71456.

The previous prime is 193423. The next prime is 193433. The reversal of 193430 is 34391.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193433) by changing a digit.

193430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6656 + ... + 6684.

It is an arithmetic number, because the mean of its divisors is an integer number (15678).

2193430 is an apocalyptic number.

193430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193430 is a deficient number, since it is larger than the sum of its proper divisors (182842).

193430 is a wasteful number, since it uses less digits than its factorization.

193430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 193430 is about 439.8067757550. The cubic root of 193430 is about 57.8328520992.

The spelling of 193430 in words is "one hundred ninety-three thousand, four hundred thirty".

Divisors: 1 2 5 10 23 29 46 58 115 145 230 290 667 841 1334 1682 3335 4205 6670 8410 19343 38686 96715 193430