Base | Representation |
---|---|
bin | 100110011101… |
… | …0001000110000 |
3 | 1101221021210101 |
4 | 1030322020300 |
5 | 20130123242 |
6 | 2000042144 |
7 | 333236431 |
oct | 114721060 |
9 | 41837711 |
10 | 20161072 |
11 | 10420348 |
12 | 6903354 |
13 | 423b839 |
14 | 296b488 |
15 | 1b839b7 |
hex | 133a230 |
20161072 has 10 divisors (see below), whose sum is σ = 39062108. Its totient is φ = 10080528.
The previous prime is 20161027. The next prime is 20161079. The reversal of 20161072 is 27016102.
It is not an unprimeable number, because it can be changed into a prime (20161079) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630018 + ... + 630049.
Almost surely, 220161072 is an apocalyptic number.
It is an amenable number.
20161072 is a deficient number, since it is larger than the sum of its proper divisors (18901036).
20161072 is a wasteful number, since it uses less digits than its factorization.
20161072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1260075 (or 1260069 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 19.
The square root of 20161072 is about 4490.1082392299. The cubic root of 20161072 is about 272.1685086179.
Adding to 20161072 its reverse (27016102), we get a palindrome (47177174).
The spelling of 20161072 in words is "twenty million, one hundred sixty-one thousand, seventy-two".
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