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22200880 = 2451321347
BaseRepresentation
bin101010010110…
…0001000110000
31112202220212211
41110230020300
521140412010
62111501504
7356463412
oct124541060
945686784
1022200880
1111593939
127527894
1347a4120
142d3c9b2
151e3808a
hex152c230

22200880 has 40 divisors (see below), whose sum is σ = 55590192. Its totient is φ = 8196864.

The previous prime is 22200859. The next prime is 22200881. The reversal of 22200880 is 8800222.

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

It is not an unprimeable number, because it can be changed into a prime (22200881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9634 + ... + 11713.

Almost surely, 222200880 is an apocalyptic number.

22200880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200880 is an abundant number, since it is smaller than the sum of its proper divisors (33389312).

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

22200880 is a wasteful number, since it uses less digits than its factorization.

22200880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373 (or 21367 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 22200880 is about 4711.7809796297. The cubic root of 22200880 is about 281.0541893018.

The spelling of 22200880 in words is "twenty-two million, two hundred thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 21347 42694 85388 106735 170776 213470 277511 341552 426940 555022 853880 1110044 1387555 1707760 2220088 2775110 4440176 5550220 11100440 22200880