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22068800 = 2652131061
BaseRepresentation
bin101010000101…
…1111001000000
31112112012200222
41110023321000
521122200200
62105002212
7355403345
oct124137100
945465628
1022068800
1111503686
127483368
134758c80
142d067cc
151e0dd85
hex150be40

22068800 has 84 divisors (see below), whose sum is σ = 58535316. Its totient is φ = 8140800.

The previous prime is 22068793. The next prime is 22068881. The reversal of 22068800 is 886022.

It can be written as a sum of positive squares in 6 ways, for example, as 1420864 + 20647936 = 1192^2 + 4544^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 22068800.

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, 20270 + ... + 21330.

It is an arithmetic number, because the mean of its divisors is an integer number (696849).

Almost surely, 222068800 is an apocalyptic number.

22068800 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 22068800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29267658).

22068800 is an abundant number, since it is smaller than the sum of its proper divisors (36466516).

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

22068800 is a wasteful number, since it uses less digits than its factorization.

22068800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 22068800 is about 4697.7441394780. The cubic root of 22068800 is about 280.4957204830.

The spelling of 22068800 in words is "twenty-two million, sixty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 130 160 200 208 260 320 325 400 416 520 650 800 832 1040 1061 1300 1600 2080 2122 2600 4160 4244 5200 5305 8488 10400 10610 13793 16976 20800 21220 26525 27586 33952 42440 53050 55172 67904 68965 84880 106100 110344 137930 169760 212200 220688 275860 339520 344825 424400 441376 551720 689650 848800 882752 1103440 1379300 1697600 2206880 2758600 4413760 5517200 11034400 22068800