Base | Representation |
---|---|
bin | 100100000100111… |
… | …0011111010001110 |
3 | 10010100211100222220 |
4 | 1020021303322032 |
5 | 4434344001340 |
6 | 320041520210 |
7 | 41666230161 |
oct | 11011637216 |
9 | 3110740886 |
10 | 1210531470 |
11 | 57134a235 |
12 | 2994a3066 |
13 | 163a40c15 |
14 | b6ab1ad8 |
15 | 7141aed0 |
hex | 48273e8e |
1210531470 has 32 divisors (see below), whose sum is σ = 2907988992. Its totient is φ = 322506912.
The previous prime is 1210531463. The next prime is 1210531471. The reversal of 1210531470 is 741350121.
It is a self number, because there is not a number n which added to its sum of digits gives 1210531470.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210531471) 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, 14799 + ... + 51381.
It is an arithmetic number, because the mean of its divisors is an integer number (90874656).
Almost surely, 21210531470 is an apocalyptic number.
1210531470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1210531470 is an abundant number, since it is smaller than the sum of its proper divisors (1697457522).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210531470 is a wasteful number, since it uses less digits than its factorization.
1210531470 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37696.
The product of its (nonzero) digits is 840, while the sum is 24.
The square root of 1210531470 is about 34792.6927673039. The cubic root of 1210531470 is about 1065.7582292524.
Adding to 1210531470 its reverse (741350121), we get a palindrome (1951881591).
The spelling of 1210531470 in words is "one billion, two hundred ten million, five hundred thirty-one thousand, four hundred seventy".
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