Base | Representation |
---|---|
bin | 101011110011… |
… | …1111100010000 |
3 | 1121020000002111 |
4 | 1113213330100 |
5 | 21340021003 |
6 | 2140155104 |
7 | 366146206 |
oct | 127477420 |
9 | 47200074 |
10 | 22970128 |
11 | 11a69885 |
12 | 7838a94 |
13 | 49b32bc |
14 | 309d076 |
15 | 203ae6d |
hex | 15e7f10 |
22970128 has 20 divisors (see below), whose sum is σ = 47123100. Its totient is φ = 10809344.
The previous prime is 22970113. The next prime is 22970141. The reversal of 22970128 is 82107922.
It can be written as a sum of positive squares in 2 ways, for example, as 9072144 + 13897984 = 3012^2 + 3728^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 22970128.
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, 41953 + ... + 42496.
It is an arithmetic number, because the mean of its divisors is an integer number (2356155).
Almost surely, 222970128 is an apocalyptic number.
It is an amenable number.
22970128 is an abundant number, since it is smaller than the sum of its proper divisors (24152972).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22970128 is a wasteful number, since it uses less digits than its factorization.
22970128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84474 (or 84468 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 22970128 is about 4792.7161401443. The cubic root of 22970128 is about 284.2635258126.
The spelling of 22970128 in words is "twenty-two million, nine hundred seventy thousand, one hundred twenty-eight".
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