Base | Representation |
---|---|
bin | 100100100000100… |
… | …0111101100010111 |
3 | 10011101002222211011 |
4 | 1021001013230113 |
5 | 10002101433143 |
6 | 321320353051 |
7 | 42233405161 |
oct | 11101075427 |
9 | 3141088734 |
10 | 1225030423 |
11 | 579552541 |
12 | 2a2315787 |
13 | 166a49496 |
14 | b89a7931 |
15 | 72831e9d |
hex | 49047b17 |
1225030423 has 2 divisors, whose sum is σ = 1225030424. Its totient is φ = 1225030422.
The previous prime is 1225030403. The next prime is 1225030451. The reversal of 1225030423 is 3240305221.
It is a weak prime.
It is an emirp because it is prime and its reverse (3240305221) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1225030423 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1225030394 and 1225030403.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1225030403) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612515211 + 612515212.
It is an arithmetic number, because the mean of its divisors is an integer number (612515212).
Almost surely, 21225030423 is an apocalyptic number.
1225030423 is a deficient number, since it is larger than the sum of its proper divisors (1).
1225030423 is an equidigital number, since it uses as much as digits as its factorization.
1225030423 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1440, while the sum is 22.
The square root of 1225030423 is about 35000.4346115873. The cubic root of 1225030423 is about 1069.9963382412.
Adding to 1225030423 its reverse (3240305221), we get a palindrome (4465335644).
The spelling of 1225030423 in words is "one billion, two hundred twenty-five million, thirty thousand, four hundred twenty-three".
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