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312141013 = 2331339661
BaseRepresentation
bin10010100110101…
…110010011010101
3210202100101222021
4102212232103111
51114402003023
650550133141
710510104052
oct2246562325
9722311867
10312141013
11150217188
12886511b1
134c88c032
142d654029
151c60b35d
hex129ae4d5

312141013 has 4 divisors (see below), whose sum is σ = 313480908. Its totient is φ = 310801120.

The previous prime is 312141001. The next prime is 312141017. The reversal of 312141013 is 310141213.

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 193265604 + 118875409 = 13902^2 + 10903^2 .

It is a cyclic number.

It is not a de Polignac number, because 312141013 - 29 = 312140501 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 (312141017) 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, 669598 + ... + 670063.

It is an arithmetic number, because the mean of its divisors is an integer number (78370227).

Almost surely, 2312141013 is an apocalyptic number.

It is an amenable number.

312141013 is a deficient number, since it is larger than the sum of its proper divisors (1339895).

312141013 is a wasteful number, since it uses less digits than its factorization.

312141013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339894.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 312141013 is about 17667.5129262723. The cubic root of 312141013 is about 678.3444537467.

Adding to 312141013 its reverse (310141213), we get a palindrome (622282226).

The spelling of 312141013 in words is "three hundred twelve million, one hundred forty-one thousand, thirteen".

Divisors: 1 233 1339661 312141013