Base | Representation |
---|---|
bin | 101001110110… |
… | …0101100011000 |
3 | 1112021201102020 |
4 | 1103230230120 |
5 | 21104103031 |
6 | 2102134440 |
7 | 354331656 |
oct | 123545430 |
9 | 45251366 |
10 | 21941016 |
11 | 11426679 |
12 | 7421420 |
13 | 4712a66 |
14 | 2cb1dd6 |
15 | 1dd6096 |
hex | 14ecb18 |
21941016 has 32 divisors (see below), whose sum is σ = 58080240. Its totient is φ = 6883328.
The previous prime is 21940981. The next prime is 21941021. The reversal of 21941016 is 61014912.
It is a super-2 number, since 2×219410162 = 962816366224512, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
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, 26481 + ... + 27296.
Almost surely, 221941016 is an apocalyptic number.
21941016 is the 2963-rd centered pentagonal number.
It is an amenable number.
21941016 is an abundant number, since it is smaller than the sum of its proper divisors (36139224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21941016 is a wasteful number, since it uses less digits than its factorization.
21941016 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53803 (or 53799 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 24.
The square root of 21941016 is about 4684.1238241532. The cubic root of 21941016 is about 279.9532915284.
Adding to 21941016 its reverse (61014912), we get a palindrome (82955928).
The spelling of 21941016 in words is "twenty-one million, nine hundred forty-one thousand, sixteen".
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