Base | Representation |
---|---|
bin | 10010101010101000… |
… | …00000110100110101 |
3 | 221212101201221201002 |
4 | 21111110000310311 |
5 | 131010414303323 |
6 | 4334222013045 |
7 | 503223112301 |
oct | 112524006465 |
9 | 27771657632 |
10 | 10021244213 |
11 | 4282805112 |
12 | 1b38117185 |
13 | c39218006 |
14 | 6b0cd2d01 |
15 | 3d9ba7828 |
hex | 255500d35 |
10021244213 has 4 divisors (see below), whose sum is σ = 10254296448. Its totient is φ = 9788191980.
The previous prime is 10021244209. The next prime is 10021244221. The reversal of 10021244213 is 31244212001.
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, and also an emirpimes, since its reverse is a distinct semiprime: 31244212001 = 27883 ⋅1120547.
It is a cyclic number.
It is not a de Polignac number, because 10021244213 - 22 = 10021244209 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10021241213) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116526053 + ... + 116526138.
It is an arithmetic number, because the mean of its divisors is an integer number (2563574112).
Almost surely, 210021244213 is an apocalyptic number.
It is an amenable number.
10021244213 is a deficient number, since it is larger than the sum of its proper divisors (233052235).
10021244213 is an equidigital number, since it uses as much as digits as its factorization.
10021244213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233052234.
The product of its (nonzero) digits is 384, while the sum is 20.
Adding to 10021244213 its reverse (31244212001), we get a palindrome (41265456214).
The spelling of 10021244213 in words is "ten billion, twenty-one million, two hundred forty-four thousand, two hundred thirteen".
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