Base | Representation |
---|---|
bin | 100100000100001… |
… | …0001111010110101 |
3 | 10010100001222102101 |
4 | 1020020101322311 |
5 | 4434243130401 |
6 | 320025142101 |
7 | 41662636045 |
oct | 11010217265 |
9 | 3110058371 |
10 | 1210130101 |
11 | 5710a5724 |
12 | 29932a931 |
13 | 16393031b |
14 | b6a09725 |
15 | 7138c101 |
hex | 48211eb5 |
1210130101 has 4 divisors (see below), whose sum is σ = 1210285152. Its totient is φ = 1209975052.
The previous prime is 1210130087. The next prime is 1210130107. The reversal of 1210130101 is 1010310121.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1210130101 - 25 = 1210130069 is a prime.
It is a super-2 number, since 2×12101301012 = 2928829722692540402, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210130107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65161 + ... + 81646.
It is an arithmetic number, because the mean of its divisors is an integer number (302571288).
Almost surely, 21210130101 is an apocalyptic number.
It is an amenable number.
1210130101 is a deficient number, since it is larger than the sum of its proper divisors (155051).
1210130101 is an equidigital number, since it uses as much as digits as its factorization.
1210130101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 155050.
The product of its (nonzero) digits is 6, while the sum is 10.
The square root of 1210130101 is about 34786.9242819770. The cubic root of 1210130101 is about 1065.6404271104.
Adding to 1210130101 its reverse (1010310121), we get a palindrome (2220440222).
The spelling of 1210130101 in words is "one billion, two hundred ten million, one hundred thirty thousand, one hundred one".
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