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22148230 = 2513170371
BaseRepresentation
bin101010001111…
…1010010000110
31112200020122211
41110133102012
521132220410
62110414034
7356154046
oct124372206
945606584
1022148230
1111558325
12750131a
134786180
142d27726
151e2768a
hex151f486

22148230 has 16 divisors (see below), whose sum is σ = 42933744. Its totient is φ = 8177760.

The previous prime is 22148219. The next prime is 22148239. The reversal of 22148230 is 3284122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22148239) 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, 85056 + ... + 85315.

It is an arithmetic number, because the mean of its divisors is an integer number (2683359).

Almost surely, 222148230 is an apocalyptic number.

22148230 is a deficient number, since it is larger than the sum of its proper divisors (20785514).

22148230 is a wasteful number, since it uses less digits than its factorization.

22148230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170391.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 22148230 is about 4706.1906038749. The cubic root of 22148230 is about 280.8318375142.

The spelling of 22148230 in words is "twenty-two million, one hundred forty-eight thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 170371 340742 851855 1703710 2214823 4429646 11074115 22148230