Base | Representation |
---|---|
bin | 100100101011011… |
… | …0100100111101101 |
3 | 10011202211000201120 |
4 | 1021112310213231 |
5 | 10010031010334 |
6 | 322042331153 |
7 | 42332641260 |
oct | 11126644755 |
9 | 3152730646 |
10 | 1230719469 |
11 | 581788831 |
12 | 2a41b9ab9 |
13 | 167c8ba95 |
14 | b9648cd7 |
15 | 730a7949 |
hex | 495b49ed |
1230719469 has 32 divisors (see below), whose sum is σ = 1950541824. Its totient is φ = 675622080.
The previous prime is 1230719431. The next prime is 1230719507. The reversal of 1230719469 is 9649170321.
It is an interprime number because it is at equal distance from previous prime (1230719431) and next prime (1230719507).
It is not a de Polignac number, because 1230719469 - 223 = 1222330861 is a prime.
It is a super-2 number, since 2×12307194692 = 3029340822751283922, which contains 22 as substring.
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 1230719469.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230719069) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43912 + ... + 66254.
It is an arithmetic number, because the mean of its divisors is an integer number (60954432).
Almost surely, 21230719469 is an apocalyptic number.
It is an amenable number.
1230719469 is a deficient number, since it is larger than the sum of its proper divisors (719822355).
1230719469 is a wasteful number, since it uses less digits than its factorization.
1230719469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22457.
The product of its (nonzero) digits is 81648, while the sum is 42.
The square root of 1230719469 is about 35081.6115507826. The cubic root of 1230719469 is about 1071.6501364998.
The spelling of 1230719469 in words is "one billion, two hundred thirty million, seven hundred nineteen thousand, four hundred sixty-nine".
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