Base | Representation |
---|---|
bin | 100110100011… |
… | …0100100111110 |
3 | 1102000212200201 |
4 | 1031012210332 |
5 | 20133241110 |
6 | 2001114114 |
7 | 333541126 |
oct | 115064476 |
9 | 42025621 |
10 | 20212030 |
11 | 10455663 |
12 | 692893a |
13 | 4258aa7 |
14 | 2981c86 |
15 | 1b93b3a |
hex | 134693e |
20212030 has 8 divisors (see below), whose sum is σ = 36381672. Its totient is φ = 8084808.
The previous prime is 20212013. The next prime is 20212033. The reversal of 20212030 is 3021202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2021203 = 20212030 / (2 + 0 + 2 + 1 + 2 + 0 + 3 + 0).
It is a junction number, because it is equal to n+sod(n) for n = 20211998 and 20212016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20212033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010592 + ... + 1010611.
It is an arithmetic number, because the mean of its divisors is an integer number (4547709).
Almost surely, 220212030 is an apocalyptic number.
20212030 is a deficient number, since it is larger than the sum of its proper divisors (16169642).
20212030 is a wasteful number, since it uses less digits than its factorization.
20212030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2021210.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 20212030 is about 4495.7791315855. The cubic root of 20212030 is about 272.3976216709.
Adding to 20212030 its reverse (3021202), we get a palindrome (23233232).
The spelling of 20212030 in words is "twenty million, two hundred twelve thousand, thirty".
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