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22128130 = 255234231
BaseRepresentation
bin101010001101…
…0011000000010
31112122020002101
41110122120002
521131100010
62110141014
7356041333
oct124323002
945566071
1022128130
1111544212
1274b176a
134779c8b
142d2028a
151e2173a
hex151a602

22128130 has 16 divisors (see below), whose sum is σ = 39916224. Its totient is φ = 8832240.

The previous prime is 22128121. The next prime is 22128143. The reversal of 22128130 is 3182122.

It is a junction number, because it is equal to n+sod(n) for n = 22128098 and 22128107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3115 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (2494764).

Almost surely, 222128130 is an apocalyptic number.

22128130 is a deficient number, since it is larger than the sum of its proper divisors (17788094).

22128130 is a wasteful number, since it uses less digits than its factorization.

22128130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 22128130 is about 4704.0546340365. The cubic root of 22128130 is about 280.7468581372.

The spelling of 22128130 in words is "twenty-two million, one hundred twenty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 523 1046 2615 4231 5230 8462 21155 42310 2212813 4425626 11064065 22128130