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319423793 = 13231068307
BaseRepresentation
bin10011000010100…
…000010100110001
3211021001102001212
4103002200110301
51123233030133
651410205505
710626025463
oct2302402461
9737042055
10319423793
11154340907
128ab83895
135123bb80
14305cc133
151d099148
hex130a0531

319423793 has 8 divisors (see below), whose sum is σ = 358951488. Its totient is φ = 282032784.

The previous prime is 319423789. The next prime is 319423799. The reversal of 319423793 is 397324913.

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 319423793 - 22 = 319423789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319423793.

It is not an unprimeable number, because it can be changed into a prime (319423799) 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, 533855 + ... + 534452.

It is an arithmetic number, because the mean of its divisors is an integer number (44868936).

Almost surely, 2319423793 is an apocalyptic number.

It is an amenable number.

319423793 is a deficient number, since it is larger than the sum of its proper divisors (39527695).

319423793 is a wasteful number, since it uses less digits than its factorization.

319423793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068343.

The product of its digits is 122472, while the sum is 41.

The square root of 319423793 is about 17872.4310881312. The cubic root of 319423793 is about 683.5795902977.

The spelling of 319423793 in words is "three hundred nineteen million, four hundred twenty-three thousand, seven hundred ninety-three".

Divisors: 1 13 23 299 1068307 13887991 24571061 319423793