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2221030031200 = 25525947055721
BaseRepresentation
bin100000010100011111101…
…101001011111101100000
321212022212101211210212221
4200110133231023331200
5242342132141444300
64420154353400424
7316315123525261
oct40243755137540
97768771753787
102221030031200
11786a2a606762
122ba54a569114
13131599781596
14796d9980968
153cb9283231a
hex2051fb4bf60

2221030031200 has 72 divisors (see below), whose sum is σ = 5513989503960. Its totient is φ = 873354163200.

The previous prime is 2221030031149. The next prime is 2221030031251. The reversal of 2221030031200 is 21300301222.

2221030031200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2221030031149) and next prime (2221030031251).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 23480661 + ... + 23575060.

It is an arithmetic number, because the mean of its divisors is an integer number (76583187555).

Almost surely, 22221030031200 is an apocalyptic number.

2221030031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221030031200 is an abundant number, since it is smaller than the sum of its proper divisors (3292959472760).

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

2221030031200 is a wasteful number, since it uses less digits than its factorization.

2221030031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47055800 (or 47055787 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2221030031200 its reverse (21300301222), we get a palindrome (2242330332422).

The spelling of 2221030031200 in words is "two trillion, two hundred twenty-one billion, thirty million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 59 80 100 118 160 200 236 295 400 472 590 800 944 1180 1475 1888 2360 2950 4720 5900 9440 11800 23600 47200 47055721 94111442 188222884 235278605 376445768 470557210 752891536 941114420 1176393025 1505783072 1882228840 2352786050 2776287539 3764457680 4705572100 5552575078 7528915360 9411144200 11105150156 13881437695 18822288400 22210300312 27762875390 37644576800 44420600624 55525750780 69407188475 88841201248 111051501560 138814376950 222103003120 277628753900 444206006240 555257507800 1110515015600 2221030031200