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22808090 = 257928871
BaseRepresentation
bin101011100000…
…0011000011010
31120220202211002
41113000120122
521314324330
62132505002
7364602614
oct127003032
946822732
1022808090
1111969068
12777b162
134957616
143059db4
152007e45
hex15c061a

22808090 has 16 divisors (see below), whose sum is σ = 41575680. Its totient is φ = 9007440.

The previous prime is 22808087. The next prime is 22808099. The reversal of 22808090 is 9080822.

It is not an unprimeable number, because it can be changed into a prime (22808099) 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, 13646 + ... + 15225.

It is an arithmetic number, because the mean of its divisors is an integer number (2598480).

Almost surely, 222808090 is an apocalyptic number.

22808090 is a deficient number, since it is larger than the sum of its proper divisors (18767590).

22808090 is a wasteful number, since it uses less digits than its factorization.

22808090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28957.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 22808090 is about 4775.7816114224. The cubic root of 22808090 is about 283.5935218537.

The spelling of 22808090 in words is "twenty-two million, eight hundred eight thousand, ninety".

Divisors: 1 2 5 10 79 158 395 790 28871 57742 144355 288710 2280809 4561618 11404045 22808090