Base | Representation |
---|---|
bin | 101110001010… |
… | …011001010010 |
3 | 211202210201200 |
4 | 232022121102 |
5 | 11044214302 |
6 | 1111212030 |
7 | 204600321 |
oct | 56123122 |
9 | 24683650 |
10 | 12101202 |
11 | 69158a3 |
12 | 4077016 |
13 | 2679099 |
14 | 18700b8 |
15 | 10e081c |
hex | b8a652 |
12101202 has 12 divisors (see below), whose sum is σ = 26219310. Its totient is φ = 4033728.
The previous prime is 12101179. The next prime is 12101227. The reversal of 12101202 is 20210121.
It can be written as a sum of positive squares in only one way, i.e., 12047841 + 53361 = 3471^2 + 231^2 .
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336127 + ... + 336162.
Almost surely, 212101202 is an apocalyptic number.
12101202 is an abundant number, since it is smaller than the sum of its proper divisors (14118108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12101202 is a wasteful number, since it uses less digits than its factorization.
12101202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 672297 (or 672294 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 12101202 is about 3478.6781972468. The cubic root of 12101202 is about 229.5846441874.
Adding to 12101202 its reverse (20210121), we get a palindrome (32311323).
The spelling of 12101202 in words is "twelve million, one hundred one thousand, two hundred two".
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