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303102013 = 476448979
BaseRepresentation
bin10010000100001…
…111100000111101
3210010100011210111
4102010033200331
51110043231023
650024310021
710340216224
oct2204174075
9703304714
10303102013
11146103035
1285612311
134aa45a06
142c37dcbb
151b92300d
hex1210f83d

303102013 has 4 divisors (see below), whose sum is σ = 309551040. Its totient is φ = 296652988.

The previous prime is 303101989. The next prime is 303102017. The reversal of 303102013 is 310201303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310201303 = 378383819.

It is a cyclic number.

It is not a de Polignac number, because 303102013 - 213 = 303093821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303101984 and 303102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303102017) 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, 3224443 + ... + 3224536.

It is an arithmetic number, because the mean of its divisors is an integer number (77387760).

Almost surely, 2303102013 is an apocalyptic number.

It is an amenable number.

303102013 is a deficient number, since it is larger than the sum of its proper divisors (6449027).

303102013 is an equidigital number, since it uses as much as digits as its factorization.

303102013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449026.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 303102013 is about 17409.8251857967. The cubic root of 303102013 is about 671.7323647545.

Adding to 303102013 its reverse (310201303), we get a palindrome (613303316).

It can be divided in two parts, 30310 and 2013, that added together give a palindrome (32323).

The spelling of 303102013 in words is "three hundred three million, one hundred two thousand, thirteen".

Divisors: 1 47 6448979 303102013