Search a number
-
+
30313031303 = 79383709257
BaseRepresentation
bin11100001110110011…
…000010011010000111
32220020120022112121002
4130032303002122013
5444040114000203
621531533243515
72122120341362
oct341663023207
986216275532
1030313031303
1111945a09095
125a5b93359b
132b211a6419
141677c510d9
15bc635dd88
hex70ecc2687

30313031303 has 4 divisors (see below), whose sum is σ = 30696740640. Its totient is φ = 29929321968.

The previous prime is 30313031297. The next prime is 30313031317.

30313031303 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30313031303 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 (30313031383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191854550 + ... + 191854707.

It is an arithmetic number, because the mean of its divisors is an integer number (7674185160).

Almost surely, 230313031303 is an apocalyptic number.

30313031303 is a deficient number, since it is larger than the sum of its proper divisors (383709337).

30313031303 is an equidigital number, since it uses as much as digits as its factorization.

30313031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383709336.

The product of its (nonzero) digits is 729, while the sum is 20.

It can be divided in two parts, 303130 and 31303, that added together give a palindrome (334433).

The spelling of 30313031303 in words is "thirty billion, three hundred thirteen million, thirty-one thousand, three hundred three".

Divisors: 1 79 383709257 30313031303