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313145879 = 6110747977
BaseRepresentation
bin10010101010100…
…011101000010111
3210211020110101112
4102222203220113
51120131132004
651023445235
710521460514
oct2252435027
9724213345
10313145879
11150843152
1288a5681b
134cb51527
142d83630b
151c758e6e
hex12aa3a17

313145879 has 8 divisors (see below), whose sum is σ = 321260688. Its totient is φ = 305127360.

The previous prime is 313145869. The next prime is 313145887. The reversal of 313145879 is 978541313.

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

It is a cyclic number.

It is not a de Polignac number, because 313145879 - 224 = 296368663 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 (313145839) 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, 17462 + ... + 30515.

It is an arithmetic number, because the mean of its divisors is an integer number (40157586).

Almost surely, 2313145879 is an apocalyptic number.

313145879 is a deficient number, since it is larger than the sum of its proper divisors (8114809).

313145879 is a wasteful number, since it uses less digits than its factorization.

313145879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48145.

The product of its digits is 90720, while the sum is 41.

The square root of 313145879 is about 17695.9283169886. The cubic root of 313145879 is about 679.0715985182.

The spelling of 313145879 in words is "three hundred thirteen million, one hundred forty-five thousand, eight hundred seventy-nine".

Divisors: 1 61 107 6527 47977 2926597 5133539 313145879