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30320230302 = 23215710729027
BaseRepresentation
bin11100001111001110…
…011111111110011110
32220021001212021202200
4130033032133332132
5444043434332202
621532351432330
72122235463615
oct341716377636
986231767680
1030320230302
1111949a8587a
125a622256a6
132b2282709b
141678ba687c
15bc6cd1e1c
hex70f39ff9e

30320230302 has 24 divisors (see below), whose sum is σ = 66112270536. Its totient is φ = 10042368336.

The previous prime is 30320230289. The next prime is 30320230351. The reversal of 30320230302 is 20303202303.

It is a super-2 number, since 2×303202303022 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5361688 + ... + 5367339.

It is an arithmetic number, because the mean of its divisors is an integer number (2754677939).

Almost surely, 230320230302 is an apocalyptic number.

30320230302 is an abundant number, since it is smaller than the sum of its proper divisors (35792040234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30320230302 is a wasteful number, since it uses less digits than its factorization.

30320230302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10729192 (or 10729189 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 30320230302 its reverse (20303202303), we get a palindrome (50623432605).

The spelling of 30320230302 in words is "thirty billion, three hundred twenty million, two hundred thirty thousand, three hundred two".

Divisors: 1 2 3 6 9 18 157 314 471 942 1413 2826 10729027 21458054 32187081 64374162 96561243 193122486 1684457239 3368914478 5053371717 10106743434 15160115151 30320230302