Base | Representation |
---|---|
bin | 11000100111010000… |
… | …01011100100010011 |
3 | 1021002220212000112202 |
4 | 30103220023210103 |
5 | 204030313432011 |
6 | 10023122113415 |
7 | 645313602434 |
oct | 142350134423 |
9 | 37086760482 |
10 | 13214202131 |
11 | 5671088709 |
12 | 26894ab86b |
13 | 132788c420 |
14 | 8d4da748b |
15 | 52516423b |
hex | 313a0b913 |
13214202131 has 4 divisors (see below), whose sum is σ = 14230679232. Its totient is φ = 12197725032.
The previous prime is 13214202107. The next prime is 13214202149. The reversal of 13214202131 is 13120241231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13120241231 = 14753 ⋅889327.
It is a cyclic number.
It is not a de Polignac number, because 13214202131 - 210 = 13214201107 is a prime.
It is a super-2 number, since 2×132142021312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13214202181) 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, 508238531 + ... + 508238556.
It is an arithmetic number, because the mean of its divisors is an integer number (3557669808).
Almost surely, 213214202131 is an apocalyptic number.
13214202131 is a deficient number, since it is larger than the sum of its proper divisors (1016477101).
13214202131 is a wasteful number, since it uses less digits than its factorization.
13214202131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1016477100.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 13214202131 its reverse (13120241231), we get a palindrome (26334443362).
The spelling of 13214202131 in words is "thirteen billion, two hundred fourteen million, two hundred two thousand, one hundred thirty-one".
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