Base | Representation |
---|---|
bin | 10010101001111000… |
… | …011011101100110010 |
3 | 1220200221000001021002 |
4 | 102221320123230302 |
5 | 312010140342320 |
6 | 13111320402002 |
7 | 1306235203025 |
oct | 225170335462 |
9 | 56627001232 |
10 | 20030012210 |
11 | 85494686aa |
12 | 3a70016302 |
13 | 1b72985340 |
14 | d802991bc |
15 | 7c36e8675 |
hex | 4a9e1bb32 |
20030012210 has 16 divisors (see below), whose sum is σ = 38827408536. Its totient is φ = 7395696768.
The previous prime is 20030012209. The next prime is 20030012239. The reversal of 20030012210 is 1221003002.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 5143328089 + 14886684121 = 71717^2 + 122011^2 .
It is a junction number, because it is equal to n+sod(n) for n = 20030012191 and 20030012200.
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, 77038379 + ... + 77038638.
Almost surely, 220030012210 is an apocalyptic number.
20030012210 is a deficient number, since it is larger than the sum of its proper divisors (18797396326).
20030012210 is a wasteful number, since it uses less digits than its factorization.
20030012210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 154077037.
The product of its (nonzero) digits is 24, while the sum is 11.
Adding to 20030012210 its reverse (1221003002), we get a palindrome (21251015212).
The spelling of 20030012210 in words is "twenty billion, thirty million, twelve thousand, two hundred ten".
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