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313014421 = 1718412613
BaseRepresentation
bin10010101010000…
…011100010010101
3210210222210001201
4102222003202111
51120112430141
651020552501
710520402326
oct2252034225
9723883051
10313014421
11150763405
12889b2731
134cb06745
142d80044d
151c730031
hex12a83895

313014421 has 4 divisors (see below), whose sum is σ = 331427052. Its totient is φ = 294601792.

The previous prime is 313014397. The next prime is 313014431. The reversal of 313014421 is 124410313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127373796 + 185640625 = 11286^2 + 13625^2 .

It is a cyclic number.

It is not a de Polignac number, because 313014421 - 25 = 313014389 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 (313014431) 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, 9206290 + ... + 9206323.

It is an arithmetic number, because the mean of its divisors is an integer number (82856763).

Almost surely, 2313014421 is an apocalyptic number.

It is an amenable number.

313014421 is a deficient number, since it is larger than the sum of its proper divisors (18412631).

313014421 is a wasteful number, since it uses less digits than its factorization.

313014421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412630.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 313014421 is about 17692.2135698165. The cubic root of 313014421 is about 678.9765609284.

Adding to 313014421 its reverse (124410313), we get a palindrome (437424734).

The spelling of 313014421 in words is "three hundred thirteen million, fourteen thousand, four hundred twenty-one".

Divisors: 1 17 18412613 313014421