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30300312313 = 139921216553
BaseRepresentation
bin11100001110000010…
…100001001011111001
32220012200101100102101
4130032002201023321
5444023334443223
621530400503401
72121604255645
oct341602411371
986180340371
1030300312313
1111939811127
125a5761ab61
132b1b6720ab
14167629dc25
15bc519a4ad
hex70e0a12f9

30300312313 has 4 divisors (see below), whose sum is σ = 30300668788. Its totient is φ = 30299955840.

The previous prime is 30300312281. The next prime is 30300312379. The reversal of 30300312313 is 31321300303.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4734540864 + 25565771449 = 68808^2 + 159893^2 .

It is a cyclic number.

It is not a de Polignac number, because 30300312313 - 25 = 30300312281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30300312013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31645 + ... + 248197.

It is an arithmetic number, because the mean of its divisors is an integer number (7575167197).

Almost surely, 230300312313 is an apocalyptic number.

It is an amenable number.

30300312313 is a deficient number, since it is larger than the sum of its proper divisors (356475).

30300312313 is a wasteful number, since it uses less digits than its factorization.

30300312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356474.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30300312313 its reverse (31321300303), we get a palindrome (61621612616).

The spelling of 30300312313 in words is "thirty billion, three hundred million, three hundred twelve thousand, three hundred thirteen".

Divisors: 1 139921 216553 30300312313