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30021902974 = 273617592873
BaseRepresentation
bin11011111101011100…
…011110001001111110
32212111021111200121101
4123331130132021332
5442441101343344
621443013323314
72111653651630
oct337534361176
985437450541
1030021902974
1111806644068
12599a33653a
132aa5a9373b
14164b30aa50
15baaa039d4
hex6fd71e27e

30021902974 has 16 divisors (see below), whose sum is σ = 51480435168. Its totient is φ = 12862950912.

The previous prime is 30021902959. The next prime is 30021902993. The reversal of 30021902974 is 47920912003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245799 + ... + 347074.

It is an arithmetic number, because the mean of its divisors is an integer number (3217527198).

Almost surely, 230021902974 is an apocalyptic number.

30021902974 is a deficient number, since it is larger than the sum of its proper divisors (21458532194).

30021902974 is a wasteful number, since it uses less digits than its factorization.

30021902974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596499.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 30021902974 in words is "thirty billion, twenty-one million, nine hundred two thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 3617 7234 25319 50638 592873 1185746 4150111 8300222 2144421641 4288843282 15010951487 30021902974