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313001311 = 744714473
BaseRepresentation
bin10010101010000…
…000010101011111
3210210222010002011
4102222000111133
51120112020221
651020412051
710520316160
oct2252002537
9723863064
10313001311
11150754577
12889a7027
134cb0079c
142d7d9767
151c72b1e1
hex12a8055f

313001311 has 4 divisors (see below), whose sum is σ = 357715792. Its totient is φ = 268286832.

The previous prime is 313001303. The next prime is 313001333. The reversal of 313001311 is 113100313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113100313 = 460324571.

It is a cyclic number.

It is not a de Polignac number, because 313001311 - 23 = 313001303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313001291 and 313001300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313001111) 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 3 ways as a sum of consecutive naturals, for example, 22357230 + ... + 22357243.

It is an arithmetic number, because the mean of its divisors is an integer number (89428948).

Almost surely, 2313001311 is an apocalyptic number.

313001311 is a deficient number, since it is larger than the sum of its proper divisors (44714481).

313001311 is an equidigital number, since it uses as much as digits as its factorization.

313001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44714480.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 313001311 is about 17691.8430639659. The cubic root of 313001311 is about 678.9670815919.

Adding to 313001311 its reverse (113100313), we get a palindrome (426101624).

The spelling of 313001311 in words is "three hundred thirteen million, one thousand, three hundred eleven".

Divisors: 1 7 44714473 313001311