Base | Representation |
---|---|
bin | 110000000011111101… |
… | …1000010000001101101 |
3 | 100212102000211110210210 |
4 | 1200013323002001231 |
5 | 3142334301133123 |
6 | 115225350053033 |
7 | 10312456430130 |
oct | 1400773020155 |
9 | 325360743723 |
10 | 103212130413 |
11 | 3a854614237 |
12 | 1800564a179 |
13 | 996b137722 |
14 | 4dd18c6217 |
15 | 2a41231e93 |
hex | 1807ec206d |
103212130413 has 96 divisors (see below), whose sum is σ = 174799247616. Its totient is φ = 52877113344.
The previous prime is 103212130291. The next prime is 103212130433. The reversal of 103212130413 is 314031212301.
It is not a de Polignac number, because 103212130413 - 28 = 103212130157 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 103212130413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (103212130433) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52311295 + ... + 52313267.
It is an arithmetic number, because the mean of its divisors is an integer number (1820825496).
Almost surely, 2103212130413 is an apocalyptic number.
It is an amenable number.
103212130413 is a deficient number, since it is larger than the sum of its proper divisors (71587117203).
103212130413 is a wasteful number, since it uses less digits than its factorization.
103212130413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2323 (or 2300 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 103212130413 its reverse (314031212301), we get a palindrome (417243342714).
The spelling of 103212130413 in words is "one hundred three billion, two hundred twelve million, one hundred thirty thousand, four hundred thirteen".
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