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22201230320 = 245318952109
BaseRepresentation
bin10100101011010010…
…111110001111110000
32010022020112100120122
4110223102332033300
5330432003332240
614111001225412
71414111226003
oct245322761760
963266470518
1022201230320
119463019a35
124377192268
13212a74a299
1411087a353a
1589e12c4b5
hex52b4be3f0

22201230320 has 40 divisors (see below), whose sum is σ = 53282958720. Its totient is φ = 8594023680.

The previous prime is 22201230319. The next prime is 22201230323. The reversal of 22201230320 is 2303210222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4473575 + ... + 4478534.

It is an arithmetic number, because the mean of its divisors is an integer number (1332073968).

Almost surely, 222201230320 is an apocalyptic number.

22201230320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201230320 is an abundant number, since it is smaller than the sum of its proper divisors (31081728400).

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

22201230320 is a wasteful number, since it uses less digits than its factorization.

22201230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952153 (or 8952147 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22201230320 its reverse (2303210222), we get a palindrome (24504440542).

The spelling of 22201230320 in words is "twenty-two billion, two hundred one million, two hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 8952109 17904218 35808436 44760545 71616872 89521090 143233744 179042180 277515379 358084360 555030758 716168720 1110061516 1387576895 2220123032 2775153790 4440246064 5550307580 11100615160 22201230320