Search a number
-
+
30605102028 = 22321675090669
BaseRepresentation
bin11100100000001101…
…001100101111001100
32220222220220021022100
4130200031030233030
51000134401231103
622020525315100
72132265034464
oct344015145714
986886807270
1030605102028
1111a85867156
125b21705a90
132b69859037
1416a495cba4
15be1d035a3
hex72034cbcc

30605102028 has 36 divisors (see below), whose sum is σ = 77826162960. Its totient is φ = 10140610656.

The previous prime is 30605101999. The next prime is 30605102051. The reversal of 30605102028 is 82020150603.

30605102028 is a `hidden beast` number, since 3 + 0 + 605 + 10 + 20 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 30605101992 and 30605102010.

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, 2539323 + ... + 2551346.

It is an arithmetic number, because the mean of its divisors is an integer number (2161837860).

Almost surely, 230605102028 is an apocalyptic number.

It is an amenable number.

30605102028 is an abundant number, since it is smaller than the sum of its proper divisors (47221060932).

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

30605102028 is a wasteful number, since it uses less digits than its factorization.

30605102028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090846 (or 5090841 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 30605102028 in words is "thirty billion, six hundred five million, one hundred two thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 167 334 501 668 1002 1503 2004 3006 6012 5090669 10181338 15272007 20362676 30544014 45816021 61088028 91632042 183264084 850141723 1700283446 2550425169 3400566892 5100850338 7651275507 10201700676 15302551014 30605102028