Search a number
-
+
319042901 = 3079103619
BaseRepresentation
bin10011000001000…
…011010101010101
3211020100001120202
4103001003111111
51123133333101
651354110245
710622551142
oct2301032525
9736301522
10319042901
11154100721
128aa1b385
13511376a8
143052d3c9
151d02136b
hex13043555

319042901 has 4 divisors (see below), whose sum is σ = 319149600. Its totient is φ = 318936204.

The previous prime is 319042873. The next prime is 319042921. The reversal of 319042901 is 109240913.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109240913 = 271403103.

It is a cyclic number.

It is not a de Polignac number, because 319042901 - 218 = 318780757 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 (319042921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48731 + ... + 54888.

It is an arithmetic number, because the mean of its divisors is an integer number (79787400).

Almost surely, 2319042901 is an apocalyptic number.

It is an amenable number.

319042901 is a deficient number, since it is larger than the sum of its proper divisors (106699).

319042901 is a wasteful number, since it uses less digits than its factorization.

319042901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106698.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 319042901 is about 17861.7720565458. The cubic root of 319042901 is about 683.3077742307.

The spelling of 319042901 in words is "three hundred nineteen million, forty-two thousand, nine hundred one".

Divisors: 1 3079 103619 319042901