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22147130 = 252214713
BaseRepresentation
bin101010001111…
…1000000111010
31112200012011002
41110133000322
521132202010
62110405002
7356150615
oct124370072
945605132
1022147130
1111557515
127500762
134785815
142d2717c
151e271a5
hex151f03a

22147130 has 8 divisors (see below), whose sum is σ = 39864852. Its totient is φ = 8858848.

The previous prime is 22147129. The next prime is 22147157. The reversal of 22147130 is 3174122.

It can be written as a sum of positive squares in 2 ways, for example, as 19280881 + 2866249 = 4391^2 + 1693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107347 + ... + 1107366.

Almost surely, 222147130 is an apocalyptic number.

22147130 is a deficient number, since it is larger than the sum of its proper divisors (17717722).

22147130 is a wasteful number, since it uses less digits than its factorization.

22147130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214720.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 22147130 is about 4706.0737350790. The cubic root of 22147130 is about 280.8271882317.

The spelling of 22147130 in words is "twenty-two million, one hundred forty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 2214713 4429426 11073565 22147130