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22102200320 = 21251099901
BaseRepresentation
bin10100100101011001…
…001101000000000000
32010001100012002221212
4110211121031000000
5330231130402240
614053102505252
71411466413544
oct244531150000
963040162855
1022102200320
119412130262
124349b95228
132113086155
1410d9585a24
158955ba165
hex52564d000

22102200320 has 104 divisors (see below), whose sum is σ = 53530806120. Its totient is φ = 8758886400.

The previous prime is 22102200317. The next prime is 22102200343. The reversal of 22102200320 is 2300220122.

It can be written as a sum of positive squares in 4 ways, for example, as 9500790784 + 12601409536 = 97472^2 + 112256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22102200295 and 22102200304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227370 + ... + 2237270.

Almost surely, 222102200320 is an apocalyptic number.

22102200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22102200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26765403060).

22102200320 is an abundant number, since it is smaller than the sum of its proper divisors (31428605800).

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

22102200320 is an equidigital number, since it uses as much as digits as its factorization.

22102200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039 (or 10017 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 22102200320 its reverse (2300220122), we get a palindrome (24402420442).

The spelling of 22102200320 in words is "twenty-two billion, one hundred two million, two hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 109 128 160 218 256 320 436 512 545 640 872 1024 1090 1280 1744 2048 2180 2560 3488 4096 4360 5120 6976 8720 9901 10240 13952 17440 19802 20480 27904 34880 39604 49505 55808 69760 79208 99010 111616 139520 158416 198020 223232 279040 316832 396040 446464 558080 633664 792080 1079209 1116160 1267328 1584160 2158418 2232320 2534656 3168320 4316836 5069312 5396045 6336640 8633672 10138624 10792090 12673280 17267344 20277248 21584180 25346560 34534688 40554496 43168360 50693120 69069376 86336720 101386240 138138752 172673440 202772480 276277504 345346880 552555008 690693760 1105110016 1381387520 2210220032 2762775040 4420440064 5525550080 11051100160 22102200320