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195380319 = 391970867
BaseRepresentation
bin10111010010101…
…00010001011111
3111121122100102010
423221110101133
5400004132234
631215402303
74561463631
oct1351242137
9447570363
10195380319
11a0318142
1255523393
133162a674
141bd3ca51
15122456e9
hexba5445f

195380319 has 8 divisors (see below), whose sum is σ = 260794240. Its totient is φ = 130109976.

The previous prime is 195380291. The next prime is 195380323. The reversal of 195380319 is 913083591.

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

It is not a de Polignac number, because 195380319 - 213 = 195372127 is a prime.

It is a super-2 number, since 2×1953803192 = 76346938105083522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195380399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32677 + ... + 38190.

It is an arithmetic number, because the mean of its divisors is an integer number (32599280).

Almost surely, 2195380319 is an apocalyptic number.

195380319 is a deficient number, since it is larger than the sum of its proper divisors (65413921).

195380319 is an equidigital number, since it uses as much as digits as its factorization.

195380319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71789.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 195380319 is about 13977.8510150881. The cubic root of 195380319 is about 580.2657511851.

The spelling of 195380319 in words is "one hundred ninety-five million, three hundred eighty thousand, three hundred nineteen".

Divisors: 1 3 919 2757 70867 212601 65126773 195380319