Base | Representation |
---|---|
bin | 10110101111100101… |
… | …01000110001100101 |
3 | 1011111221212000202210 |
4 | 23113302220301211 |
5 | 200001314411440 |
6 | 5335341154033 |
7 | 611403632100 |
oct | 132762506145 |
9 | 34457760683 |
10 | 12210310245 |
11 | 51a64468a1 |
12 | 244925b919 |
13 | 11c78bb963 |
14 | 83b925737 |
15 | 4b6e64a80 |
hex | 2d7ca8c65 |
12210310245 has 192 divisors, whose sum is σ = 24523140096. Its totient is φ = 5163540480.
The previous prime is 12210310241. The next prime is 12210310303. The reversal of 12210310245 is 54201301221.
It is not a de Polignac number, because 12210310245 - 22 = 12210310241 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12210310241) by changing a digit.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 52404649 + ... + 52404881.
It is an arithmetic number, because the mean of its divisors is an integer number (127724688).
Almost surely, 212210310245 is an apocalyptic number.
12210310245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12210310245 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
12210310245 is a wasteful number, since it uses less digits than its factorization.
12210310245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 380 (or 373 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 21.
Adding to 12210310245 its reverse (54201301221), we get a palindrome (66411611466).
The spelling of 12210310245 in words is "twelve billion, two hundred ten million, three hundred ten thousand, two hundred forty-five".
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