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30300252988 = 2219139660017
BaseRepresentation
bin11100001110000010…
…010010101100111100
32220012200021100001011
4130032002102230330
5444023331043423
621530355325004
72121603620665
oct341602225474
986180240034
1030300252988
11119397805a5
125a575b0764
132b1b6510a5
14167628636c
15bc5187b0d
hex70e092b3c

30300252988 has 12 divisors (see below), whose sum is σ = 53303064192. Its totient is φ = 15070806080.

The previous prime is 30300252979. The next prime is 30300252989. The reversal of 30300252988 is 88925200303.

It is a super-2 number, since 2×303002529882 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30300252988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30300252989) 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, 19829245 + ... + 19830772.

It is an arithmetic number, because the mean of its divisors is an integer number (4441922016).

Almost surely, 230300252988 is an apocalyptic number.

It is an amenable number.

30300252988 is a deficient number, since it is larger than the sum of its proper divisors (23002811204).

30300252988 is a wasteful number, since it uses less digits than its factorization.

30300252988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39660212 (or 39660210 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 30300252988 in words is "thirty billion, three hundred million, two hundred fifty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 191 382 764 39660017 79320034 158640068 7575063247 15150126494 30300252988