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30021450204 = 2232501787517
BaseRepresentation
bin11011111101011010…
…101111100111011100
32212111020122200112010
4123331122233213130
5442440442401304
621442555511220
72111650054614
oct337532574734
985436580463
1030021450204
1111806364979
12599a158510
132aa5965625
14164b22da44
15baa964789
hex6fd6af9dc

30021450204 has 12 divisors (see below), whose sum is σ = 70050050504. Its totient is φ = 10007150064.

The previous prime is 30021450191. The next prime is 30021450233. The reversal of 30021450204 is 40205412003.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250893747 + ... + 1250893770.

Almost surely, 230021450204 is an apocalyptic number.

It is an amenable number.

30021450204 is an abundant number, since it is smaller than the sum of its proper divisors (40028600300).

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

30021450204 is a wasteful number, since it uses less digits than its factorization.

30021450204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501787524 (or 2501787522 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 30021450204 its reverse (40205412003), we get a palindrome (70226862207).

The spelling of 30021450204 in words is "thirty billion, twenty-one million, four hundred fifty thousand, two hundred four".

Divisors: 1 2 3 4 6 12 2501787517 5003575034 7505362551 10007150068 15010725102 30021450204