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20300434444 = 2231163713181
BaseRepresentation
bin10010111010000000…
…000000110000001100
31221101202211220211101
4102322000000300030
5313033402400234
613154220432444
71316030563033
oct227200006014
957352756741
1020300434444
11867807a954
123b266a8724
131bb69c83b4
14da816d71a
157dc313814
hex4ba000c0c

20300434444 has 12 divisors (see below), whose sum is σ = 36671752768. Its totient is φ = 9822790800.

The previous prime is 20300434433. The next prime is 20300434447. The reversal of 20300434444 is 44443400302.

It is not an unprimeable number, because it can be changed into a prime (20300434447) 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, 81856467 + ... + 81856714.

Almost surely, 220300434444 is an apocalyptic number.

It is an amenable number.

20300434444 is a deficient number, since it is larger than the sum of its proper divisors (16371318324).

20300434444 is a wasteful number, since it uses less digits than its factorization.

20300434444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163713216 (or 163713214 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20300434444 its reverse (44443400302), we get a palindrome (64743834746).

The spelling of 20300434444 in words is "twenty billion, three hundred million, four hundred thirty-four thousand, four hundred forty-four".

Divisors: 1 2 4 31 62 124 163713181 327426362 654852724 5075108611 10150217222 20300434444