Search a number
313122423 = 3671557823
BaseRepresentation
bin10010101010011…
…101111001110111
3210211012021012210
4102222131321313
51120124404143
651023144503
710521332235
oct2252357167
9724167183
10313122423
11150827569
1288a45133
134cb43953
142d82b955
151c752033
hex12a9de77

313122423 has 8 divisors (see below), whose sum is σ = 423728128. Its totient is φ = 205632504.

The previous prime is 313122401. The next prime is 313122427. The reversal of 313122423 is 324221313.

Adding to 313122423 its reverse (324221313), we get a palindrome (637343736).

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

It is not a de Polignac number, because 313122423 - 212 = 313118327 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 313122423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122427) 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, 778711 + ... + 779112.

It is an arithmetic number, because the mean of its divisors is an integer number (52966016).

Almost surely, 2313122423 is an apocalyptic number.

313122423 is a deficient number, since it is larger than the sum of its proper divisors (110605705).

313122423 is a wasteful number, since it uses less digits than its factorization.

313122423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557893.

The product of its digits is 864, while the sum is 21.

The square root of 313122423 is about 17695.2655532490. The cubic root of 313122423 is about 679.0546429476.

The spelling of 313122423 in words is "three hundred thirteen million, one hundred twenty-two thousand, four hundred twenty-three".