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21301301300 = 2252434953791
BaseRepresentation
bin10011110101101010…
…000001000000110100
32000222112011020001012
4103311222001000310
5322111113120200
613441412451352
71352603034146
oct236552010064
960875136035
1021301301300
119041035a44
124165919b58
132016179cc6
141061064c96
1584a116a35
hex4f5a81034

21301301300 has 36 divisors (see below), whose sum is σ = 47298806016. Its totient is φ = 8322367200.

The previous prime is 21301301293. The next prime is 21301301317. The reversal of 21301301300 is 310310312.

It is a congruent number.

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, 2472596 + ... + 2481195.

Almost surely, 221301301300 is an apocalyptic number.

21301301300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21301301300 is an abundant number, since it is smaller than the sum of its proper divisors (25997504716).

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

21301301300 is a wasteful number, since it uses less digits than its factorization.

21301301300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953848 (or 4953841 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21301301300 its reverse (310310312), we get a palindrome (21611611612).

The spelling of 21301301300 in words is "twenty-one billion, three hundred one million, three hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 430 860 1075 2150 4300 4953791 9907582 19815164 24768955 49537910 99075820 123844775 213013013 247689550 426026026 495379100 852052052 1065065065 2130130130 4260260260 5325325325 10650650650 21301301300