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22079090 = 25111711807
BaseRepresentation
bin101010000111…
…0011001110010
31112112201211002
41110032121302
521123012330
62105122002
7355445345
oct124163162
945481732
1022079090
1111510390
127489302
134760867
142d0a45c
151e11e45
hex150e672

22079090 has 32 divisors (see below), whose sum is σ = 45909504. Its totient is φ = 7555840.

The previous prime is 22079089. The next prime is 22079093. The reversal of 22079090 is 9097022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22079093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4034 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (1434672).

Almost surely, 222079090 is an apocalyptic number.

22079090 is an abundant number, since it is smaller than the sum of its proper divisors (23830414).

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

22079090 is a wasteful number, since it uses less digits than its factorization.

22079090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11842.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 22079090 is about 4698.8392183602. The cubic root of 22079090 is about 280.5393092067.

The spelling of 22079090 in words is "twenty-two million, seventy-nine thousand, ninety".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 11807 23614 59035 118070 129877 200719 259754 401438 649385 1003595 1298770 2007190 2207909 4415818 11039545 22079090