Base | Representation |
---|---|
bin | 11001010001100… |
… | …10101100100010 |
3 | 112202221201202200 |
4 | 30220302230202 |
5 | 413234120002 |
6 | 33012154030 |
7 | 5153066055 |
oct | 1450625442 |
9 | 482851680 |
10 | 212020002 |
11 | a9752847 |
12 | 5b008916 |
13 | 34c0542c |
14 | 20230a9c |
15 | 13930b1c |
hex | ca32b22 |
212020002 has 12 divisors (see below), whose sum is σ = 459376710. Its totient is φ = 70673328.
The previous prime is 212020001. The next prime is 212020009. The reversal of 212020002 is 200020212.
It can be written as a sum of positive squares in only one way, i.e., 196028001 + 15992001 = 14001^2 + 3999^2 .
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (212020001) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5889427 + ... + 5889462.
Almost surely, 2212020002 is an apocalyptic number.
212020002 is an abundant number, since it is smaller than the sum of its proper divisors (247356708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212020002 is a wasteful number, since it uses less digits than its factorization.
212020002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11778897 (or 11778894 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 212020002 is about 14560.9066338604. The cubic root of 212020002 is about 596.2919477891.
Adding to 212020002 its reverse (200020212), we get a palindrome (412040214).
It can be divided in two parts, 2120 and 20002, that added together give a palindrome (22122).
The spelling of 212020002 in words is "two hundred twelve million, twenty thousand, two".
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