Base | Representation |
---|---|
bin | 100011110001011… |
… | …0101001101111101 |
3 | 10002122121020011221 |
4 | 1013202311031331 |
5 | 4424240010323 |
6 | 315034513341 |
7 | 41513331301 |
oct | 10742651575 |
9 | 3078536157 |
10 | 1200313213 |
11 | 5666000a0 |
12 | 295b95851 |
13 | 1618a3c08 |
14 | b55b1d01 |
15 | 7059d55d |
hex | 478b537d |
1200313213 has 16 divisors (see below), whose sum is σ = 1395449856. Its totient is φ = 1021533040.
The previous prime is 1200313193. The next prime is 1200313321. The reversal of 1200313213 is 3123130021.
It is not a de Polignac number, because 1200313213 - 25 = 1200313181 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 (1200313613) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38581 + ... + 62362.
It is an arithmetic number, because the mean of its divisors is an integer number (87215616).
Almost surely, 21200313213 is an apocalyptic number.
It is an amenable number.
1200313213 is a deficient number, since it is larger than the sum of its proper divisors (195136643).
1200313213 is a wasteful number, since it uses less digits than its factorization.
1200313213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101024.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1200313213 is about 34645.5366966656. The cubic root of 1200313213 is about 1062.7510162727.
Adding to 1200313213 its reverse (3123130021), we get a palindrome (4323443234).
It can be divided in two parts, 1200 and 313213, that added together give a palindrome (314413).
The spelling of 1200313213 in words is "one billion, two hundred million, three hundred thirteen thousand, two hundred thirteen".
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