Base | Representation |
---|---|
bin | 100110100010… |
… | …0001000011010 |
3 | 1102000100221121 |
4 | 1031010020122 |
5 | 20132431020 |
6 | 2000555454 |
7 | 333466663 |
oct | 115041032 |
9 | 42010847 |
10 | 20202010 |
11 | 10449084 |
12 | 6922b8a |
13 | 425436a |
14 | 297c36a |
15 | 1b90baa |
hex | 134421a |
20202010 has 32 divisors (see below), whose sum is σ = 37884672. Its totient is φ = 7750080.
The previous prime is 20201983. The next prime is 20202011. The reversal of 20202010 is 1020202.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20201984 and 20202002.
It is not an unprimeable number, because it can be changed into a prime (20202011) 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, 24505 + ... + 25315.
It is an arithmetic number, because the mean of its divisors is an integer number (1183896).
Almost surely, 220202010 is an apocalyptic number.
20202010 is a deficient number, since it is larger than the sum of its proper divisors (17682662).
20202010 is a wasteful number, since it uses less digits than its factorization.
20202010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 918.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 20202010 is about 4494.6646148517. The cubic root of 20202010 is about 272.3526010350.
Adding to 20202010 its reverse (1020202), we get a palindrome (21222212).
The spelling of 20202010 in words is "twenty million, two hundred two thousand, ten".
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