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193970 = 25717163
BaseRepresentation
bin101111010110110010
3100212002002
4233112302
522201340
64054002
71435340
oct572662
9325062
10193970
11122807
1294302
136a39a
1450990
153c715
hex2f5b2

193970 has 32 divisors (see below), whose sum is σ = 425088. Its totient is φ = 62208.

The previous prime is 193957. The next prime is 193979. The reversal of 193970 is 79391.

It is not an unprimeable number, because it can be changed into a prime (193979) by changing a digit.

193970 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 15 ways as a sum of consecutive naturals, for example, 1109 + ... + 1271.

It is an arithmetic number, because the mean of its divisors is an integer number (13284).

2193970 is an apocalyptic number.

193970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193970 is an abundant number, since it is smaller than the sum of its proper divisors (231118).

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

193970 is a wasteful number, since it uses less digits than its factorization.

193970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 193970 is about 440.4202538485. The cubic root of 193970 is about 57.8866195666.

The spelling of 193970 in words is "one hundred ninety-three thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 163 170 238 326 595 815 1141 1190 1630 2282 2771 5542 5705 11410 13855 19397 27710 38794 96985 193970