Base | Representation |
---|---|
bin | 10011000001011001… |
… | …11000100000101011 |
3 | 222100201021020222200 |
4 | 21200230320200223 |
5 | 131403323010011 |
6 | 4405205151243 |
7 | 511033141446 |
oct | 114054704053 |
9 | 28321236880 |
10 | 10212313131 |
11 | 4370648009 |
12 | 1b900bb523 |
13 | c69996147 |
14 | 6cc42c65d |
15 | 3eb84a856 |
hex | 260b3882b |
10212313131 has 12 divisors (see below), whose sum is σ = 15149798352. Its totient is φ = 6624202896.
The previous prime is 10212313121. The next prime is 10212313147. The reversal of 10212313131 is 13131321201.
10212313131 is a `hidden beast` number, since 10 + 212 + 313 + 131 = 666.
It is not a de Polignac number, because 10212313131 - 210 = 10212312107 is a prime.
It is a super-2 number, since 2×102123131312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (10212313121) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15333471 + ... + 15334136.
It is an arithmetic number, because the mean of its divisors is an integer number (1262483196).
Almost surely, 210212313131 is an apocalyptic number.
10212313131 is a deficient number, since it is larger than the sum of its proper divisors (4937485221).
10212313131 is a wasteful number, since it uses less digits than its factorization.
10212313131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30667650 (or 30667647 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 10212313131 its reverse (13131321201), we get a palindrome (23343634332).
The spelling of 10212313131 in words is "ten billion, two hundred twelve million, three hundred thirteen thousand, one hundred thirty-one".
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