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21302332300 = 22521271677349
BaseRepresentation
bin10011110101101101…
…111100101110001100
32000222121002121022101
4103311231330232030
5322111344113200
613441450524444
71352614560034
oct236555745614
960877077271
1021302332300
11904167a607
124166136724
13201644b372
1410612528c4
1584a26c26a
hex4f5b7cb8c

21302332300 has 36 divisors (see below), whose sum is σ = 46590073600. Its totient is φ = 8453833920.

The previous prime is 21302332267. The next prime is 21302332313. The reversal of 21302332300 is 323320312.

It is a happy number.

It is a super-2 number, since 2×213023323002 (a number of 21 digits) contains 22 as substring.

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, 825975 + ... + 851374.

Almost surely, 221302332300 is an apocalyptic number.

21302332300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302332300 is an abundant number, since it is smaller than the sum of its proper divisors (25287741300).

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

21302332300 is a wasteful number, since it uses less digits than its factorization.

21302332300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677490 (or 1677483 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21302332300 its reverse (323320312), we get a palindrome (21625652612).

The spelling of 21302332300 in words is "twenty-one billion, three hundred two million, three hundred thirty-two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 127 254 508 635 1270 2540 3175 6350 12700 1677349 3354698 6709396 8386745 16773490 33546980 41933725 83867450 167734900 213023323 426046646 852093292 1065116615 2130233230 4260466460 5325583075 10651166150 21302332300