Base | Representation |
---|---|
bin | 1100010110100000101… |
… | …1011010100000100100 |
3 | 202021201200000212222100 |
4 | 3011220023122200210 |
5 | 11434042003021012 |
6 | 241252304332100 |
7 | 21221354416236 |
oct | 3055013324044 |
9 | 667650025870 |
10 | 212201220132 |
11 | 81aa3069500 |
12 | 35161914030 |
13 | 1701a077465 |
14 | a3b071c256 |
15 | 57be6e08dc |
hex | 31682da824 |
212201220132 has 54 divisors (see below), whose sum is σ = 589593989894. Its totient is φ = 64303398720.
The previous prime is 212201220113. The next prime is 212201220193. The reversal of 212201220132 is 231022102212.
212201220132 is a `hidden beast` number, since 212 + 201 + 220 + 1 + 32 = 666.
It can be written as a sum of positive squares in only one way, i.e., 188369888256 + 23831331876 = 434016^2 + 154374^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24352993 + ... + 24361704.
Almost surely, 2212201220132 is an apocalyptic number.
212201220132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
212201220132 is an abundant number, since it is smaller than the sum of its proper divisors (377392769762).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212201220132 is a wasteful number, since it uses less digits than its factorization.
212201220132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48714729 (or 48714713 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 212201220132 its reverse (231022102212), we get a palindrome (443223322344).
The spelling of 212201220132 in words is "two hundred twelve billion, two hundred one million, two hundred twenty thousand, one hundred thirty-two".
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