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22064147 = 717792347
BaseRepresentation
bin101010000101…
…0110000010011
31112111222022122
41110022300103
521122023042
62104524455
7355353650
oct124126023
945458278
1022064147
1111500136
12748072b
134756b11
142d04c27
151e0c7d2
hex150ac13

22064147 has 16 divisors (see below), whose sum is σ = 27048960. Its totient is φ = 17566848.

The previous prime is 22064137. The next prime is 22064167. The reversal of 22064147 is 74146022.

It is not a de Polignac number, because 22064147 - 24 = 22064131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22064137) 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, 8228 + ... + 10574.

It is an arithmetic number, because the mean of its divisors is an integer number (1690560).

Almost surely, 222064147 is an apocalyptic number.

22064147 is a deficient number, since it is larger than the sum of its proper divisors (4984813).

22064147 is a wasteful number, since it uses less digits than its factorization.

22064147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22064147 is about 4697.2488756718. The cubic root of 22064147 is about 280.4760057979.

The spelling of 22064147 in words is "twenty-two million, sixty-four thousand, one hundred forty-seven".

Divisors: 1 7 17 79 119 553 1343 2347 9401 16429 39899 185413 279293 1297891 3152021 22064147