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30281322613 = 673891161851
BaseRepresentation
bin11100001100111010…
…000101000001110101
32220011100122120110011
4130030322011001311
5444004004310423
621524441500221
72121253665253
oct341472050165
986140576404
1030281322613
111192a020963
125a511a1671
132b17753799
1416739595d3
15bc3698b0d
hex70ce85075

30281322613 has 8 divisors (see below), whose sum is σ = 30812315040. Its totient is φ = 29752654800.

The previous prime is 30281322593. The next prime is 30281322623. The reversal of 30281322613 is 31622318203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30281322613 - 25 = 30281322581 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 (30281322623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554863 + ... + 606988.

It is an arithmetic number, because the mean of its divisors is an integer number (3851539380).

Almost surely, 230281322613 is an apocalyptic number.

It is an amenable number.

30281322613 is a deficient number, since it is larger than the sum of its proper divisors (530992427).

30281322613 is a wasteful number, since it uses less digits than its factorization.

30281322613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162307.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 30281322613 in words is "thirty billion, two hundred eighty-one million, three hundred twenty-two thousand, six hundred thirteen".

Divisors: 1 67 389 26063 1161851 77844017 451960039 30281322613