Search a number
-
+
30131020302 = 237616598997
BaseRepresentation
bin11100000011111100…
…101110001000001110
32212202212211102102220
4130003330232020032
5443202020122202
621501512200210
72114450306145
oct340374561016
985685742386
1030131020302
11118621a2579
125a0a999066
132ac257a0c6
14165b9d275c
15bb53a9abc
hex703f2e20e

30131020302 has 16 divisors (see below), whose sum is σ = 60341237712. Its totient is φ = 10030473920.

The previous prime is 30131020291. The next prime is 30131020313. The reversal of 30131020302 is 20302013103.

It is an interprime number because it is at equal distance from previous prime (30131020291) and next prime (30131020313).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294933 + ... + 3304064.

It is an arithmetic number, because the mean of its divisors is an integer number (3771327357).

Almost surely, 230131020302 is an apocalyptic number.

30131020302 is an abundant number, since it is smaller than the sum of its proper divisors (30210217410).

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

30131020302 is a wasteful number, since it uses less digits than its factorization.

30131020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599763.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30131020302 its reverse (20302013103), we get a palindrome (50433033405).

The spelling of 30131020302 in words is "thirty billion, one hundred thirty-one million, twenty thousand, three hundred two".

Divisors: 1 2 3 6 761 1522 2283 4566 6598997 13197994 19796991 39593982 5021836717 10043673434 15065510151 30131020302