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313051243 = 17132713877
BaseRepresentation
bin10010101010001…
…100100001101011
3210211001122120111
4102222030201223
51120120114433
651021435151
710520614561
oct2252144153
9724048514
10313051243
1115078903a
1288a0bab7
134cb1a42b
142d80da31
151c73adcd
hex12a8c86b

313051243 has 8 divisors (see below), whose sum is σ = 331739712. Its totient is φ = 294393216.

The previous prime is 313051187. The next prime is 313051253. The reversal of 313051243 is 342150313.

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

It is not a de Polignac number, because 313051243 - 217 = 312920171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313051253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15621 + ... + 29497.

It is an arithmetic number, because the mean of its divisors is an integer number (41467464).

Almost surely, 2313051243 is an apocalyptic number.

313051243 is a deficient number, since it is larger than the sum of its proper divisors (18688469).

313051243 is a wasteful number, since it uses less digits than its factorization.

313051243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15221.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 313051243 is about 17693.2541664896. The cubic root of 313051243 is about 679.0031840837.

The spelling of 313051243 in words is "three hundred thirteen million, fifty-one thousand, two hundred forty-three".

Divisors: 1 17 1327 13877 22559 235909 18414779 313051243