Base | Representation |
---|---|
bin | 11001010001011… |
… | …01110110000011 |
3 | 112202220201111201 |
4 | 30220231312003 |
5 | 413233001011 |
6 | 33011522031 |
7 | 5152654120 |
oct | 1450556603 |
9 | 482821451 |
10 | 212000131 |
11 | a9739922 |
12 | 5abb9317 |
13 | 34bc9385 |
14 | 20227747 |
15 | 13929cc1 |
hex | ca2dd83 |
212000131 has 16 divisors (see below), whose sum is σ = 253440000. Its totient is φ = 173387808.
The previous prime is 212000101. The next prime is 212000137. The reversal of 212000131 is 131000212.
212000131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 212000131 - 25 = 212000099 is a prime.
It is a super-2 number, since 2×2120001312 = 89888111088034322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212000137) 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, 75745 + ... + 78493.
It is an arithmetic number, because the mean of its divisors is an integer number (15840000).
Almost surely, 2212000131 is an apocalyptic number.
212000131 is a deficient number, since it is larger than the sum of its proper divisors (41439869).
212000131 is a wasteful number, since it uses less digits than its factorization.
212000131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3258.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 212000131 is about 14560.2242771188. The cubic root of 212000131 is about 596.2733185916.
Adding to 212000131 its reverse (131000212), we get a palindrome (343000343).
The spelling of 212000131 in words is "two hundred twelve million, one hundred thirty-one", and thus it is an aban number.
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