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193120230 = 23522328867
BaseRepresentation
bin10111000001011…
…00011111100110
3111110101112011010
423200230133212
5343414321410
631055123050
74533331512
oct1340543746
9443345133
10193120230
119a0140a6
1254813486
1331018a34
141b911142
1511e4ac20
hexb82c7e6

193120230 has 32 divisors (see below), whose sum is σ = 465583104. Its totient is φ = 51266016.

The previous prime is 193120223. The next prime is 193120247. The reversal of 193120230 is 32021391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 193120197 and 193120206.

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, 7744 + ... + 21123.

It is an arithmetic number, because the mean of its divisors is an integer number (14549472).

Almost surely, 2193120230 is an apocalyptic number.

193120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193120230 is an abundant number, since it is smaller than the sum of its proper divisors (272462874).

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

193120230 is a wasteful number, since it uses less digits than its factorization.

193120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 193120230 is about 13896.7704881386. The cubic root of 193120230 is about 578.0196331178.

The spelling of 193120230 in words is "one hundred ninety-three million, one hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 223 446 669 1115 1338 2230 3345 6690 28867 57734 86601 144335 173202 288670 433005 866010 6437341 12874682 19312023 32186705 38624046 64373410 96560115 193120230