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194930293 = 1498591523
BaseRepresentation
bin10111001111001…
…10011001110101
3111120210111002111
423213212121311
5344400232133
631202011021
74554610615
oct1347463165
9446714074
10194930293
11a0040018
1255346a71
133150088c
141bc62a45
15121a71cd
hexb9e6675

194930293 has 8 divisors (see below), whose sum is σ = 196596000. Its totient is φ = 193269648.

The previous prime is 194930261. The next prime is 194930299. The reversal of 194930293 is 392039491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194930293 - 25 = 194930261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194930299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127230 + ... + 128752.

It is an arithmetic number, because the mean of its divisors is an integer number (24574500).

Almost surely, 2194930293 is an apocalyptic number.

It is an amenable number.

194930293 is a deficient number, since it is larger than the sum of its proper divisors (1665707).

194930293 is a wasteful number, since it uses less digits than its factorization.

194930293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 194930293 is about 13961.7439096984. The cubic root of 194930293 is about 579.8198935425.

The spelling of 194930293 in words is "one hundred ninety-four million, nine hundred thirty thousand, two hundred ninety-three".

Divisors: 1 149 859 1523 127991 226927 1308257 194930293