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20272083200 = 28523167513
BaseRepresentation
bin10010111000010011…
…110111000100000000
31221022210111112020022
4102320103313010000
5313004123130300
613151325033012
71315234602245
oct227023670400
957283445208
1020272083200
118663076176
123b190b5768
131bb0b7ca05
14da44ad5cc
157d9ab3285
hex4b84f7100

20272083200 has 54 divisors (see below), whose sum is σ = 50176589274. Its totient is φ = 8108830720.

The previous prime is 20272083187. The next prime is 20272083233. The reversal of 20272083200 is 238027202.

It can be written as a sum of positive squares in 3 ways, for example, as 212459776 + 20059623424 = 14576^2 + 141632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20272083200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1577357 + ... + 1590156.

Almost surely, 220272083200 is an apocalyptic number.

20272083200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20272083200 is an abundant number, since it is smaller than the sum of its proper divisors (29904506074).

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

20272083200 is an equidigital number, since it uses as much as digits as its factorization.

20272083200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167539 (or 3167520 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 20272083200 in words is "twenty billion, two hundred seventy-two million, eighty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 640 800 1280 1600 3200 6400 3167513 6335026 12670052 15837565 25340104 31675130 50680208 63350260 79187825 101360416 126700520 158375650 202720832 253401040 316751300 405441664 506802080 633502600 810883328 1013604160 1267005200 2027208320 2534010400 4054416640 5068020800 10136041600 20272083200