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313441431 = 3104480477
BaseRepresentation
bin10010101011101…
…011110010010111
3210211210110210220
4102223223302113
51120220111211
651034045423
710524131262
oct2253536227
9724713726
10313441431
11150a25206
1288b79873
134cc25c04
142d8b1cd9
151c7b6806
hex12aebc97

313441431 has 4 divisors (see below), whose sum is σ = 417921912. Its totient is φ = 208960952.

The previous prime is 313441409. The next prime is 313441459. The reversal of 313441431 is 134144313.

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

It is a cyclic number.

It is not a de Polignac number, because 313441431 - 25 = 313441399 is a prime.

It is a super-2 number, since 2×3134414312 = 196491061334655522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313421431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52240236 + ... + 52240241.

It is an arithmetic number, because the mean of its divisors is an integer number (104480478).

Almost surely, 2313441431 is an apocalyptic number.

313441431 is a deficient number, since it is larger than the sum of its proper divisors (104480481).

313441431 is a wasteful number, since it uses less digits than its factorization.

313441431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104480480.

The product of its digits is 1728, while the sum is 24.

The square root of 313441431 is about 17704.2771950735. The cubic root of 313441431 is about 679.2851708222.

Adding to 313441431 its reverse (134144313), we get a palindrome (447585744).

The spelling of 313441431 in words is "three hundred thirteen million, four hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 3 104480477 313441431