Base | Representation |
---|---|
bin | 1100010101110011101… |
… | …0010111010010101011 |
3 | 202021020111100201122121 |
4 | 3011130322113102223 |
5 | 11433200110414011 |
6 | 241221433132111 |
7 | 21213600655363 |
oct | 3053472272253 |
9 | 667214321577 |
10 | 212012201131 |
11 | 81a063a6755 |
12 | 3510a55a037 |
13 | 16cb9b663b3 |
14 | a3935979a3 |
15 | 57acd04e71 |
hex | 315ce974ab |
212012201131 has 8 divisors (see below), whose sum is σ = 212562063504. Its totient is φ = 211462444800.
The previous prime is 212012201129. The next prime is 212012201161. The reversal of 212012201131 is 131102210212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 212012201131 - 21 = 212012201129 is a prime.
It is a super-2 number, since 2×2120122011312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212012201111) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5403175 + ... + 5442271.
It is an arithmetic number, because the mean of its divisors is an integer number (26570257938).
Almost surely, 2212012201131 is an apocalyptic number.
212012201131 is a deficient number, since it is larger than the sum of its proper divisors (549862373).
212012201131 is a wasteful number, since it uses less digits than its factorization.
212012201131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53021.
The product of its (nonzero) digits is 48, while the sum is 16.
Adding to 212012201131 its reverse (131102210212), we get a palindrome (343114411343).
The spelling of 212012201131 in words is "two hundred twelve billion, twelve million, two hundred one thousand, one hundred thirty-one".
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