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301300031 = 521578311
BaseRepresentation
bin10001111101010…
…111100100111111
3202222221121221102
4101331113210333
51104113100111
645521523315
710316002514
oct2175274477
9688847842
10301300031
1114509219a
1284aa353b
134a564756
142c03130b
151b6b913b
hex11f5793f

301300031 has 4 divisors (see below), whose sum is σ = 301878864. Its totient is φ = 300721200.

The previous prime is 301300009. The next prime is 301300037. The reversal of 301300031 is 130003103.

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

It is a de Polignac number, because none of the positive numbers 2k-301300031 is a prime.

It is a super-2 number, since 2×3013000312 = 181563417361201922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 301299985 and 301300021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301300037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288635 + ... + 289676.

It is an arithmetic number, because the mean of its divisors is an integer number (75469716).

Almost surely, 2301300031 is an apocalyptic number.

301300031 is a deficient number, since it is larger than the sum of its proper divisors (578833).

301300031 is an equidigital number, since it uses as much as digits as its factorization.

301300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578832.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 301300031 is about 17357.9961689130. The cubic root of 301300031 is about 670.3985384144.

Adding to 301300031 its reverse (130003103), we get a palindrome (431303134).

The spelling of 301300031 in words is "three hundred one million, three hundred thousand, thirty-one".

Divisors: 1 521 578311 301300031