Base | Representation |
---|---|
bin | 1100010101110011110… |
… | …1111010011000101110 |
3 | 202021020120002222121200 |
4 | 3011130331322120232 |
5 | 11433200330200220 |
6 | 241221505110330 |
7 | 21213611611311 |
oct | 3053475723056 |
9 | 667216088550 |
10 | 212013131310 |
11 | 81a069815a2 |
12 | 3510a9283a6 |
13 | 16cba1008b6 |
14 | a39375a978 |
15 | 57ace3a890 |
hex | 315cf7a62e |
212013131310 has 96 divisors (see below), whose sum is σ = 573888257280. Its totient is φ = 54255204864.
The previous prime is 212013131263. The next prime is 212013131371. The reversal of 212013131310 is 13131310212.
212013131310 is a `hidden beast` number, since 21 + 20 + 1 + 313 + 1 + 310 = 666.
It is a super-2 number, since 2×2120131313102 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192990 + ... + 679169.
It is an arithmetic number, because the mean of its divisors is an integer number (5978002680).
Almost surely, 2212013131310 is an apocalyptic number.
212013131310 is an abundant number, since it is smaller than the sum of its proper divisors (361875125970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212013131310 is a wasteful number, since it uses less digits than its factorization.
212013131310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 872282 (or 872279 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 212013131310 its reverse (13131310212), we get a palindrome (225144441522).
The spelling of 212013131310 in words is "two hundred twelve billion, thirteen million, one hundred thirty-one thousand, three hundred ten".
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