Base | Representation |
---|---|
bin | 101011000100010… |
… | …0101100001100110 |
3 | 10201201012020202211 |
4 | 1112020211201212 |
5 | 10424420411210 |
6 | 355221154034 |
7 | 50545034356 |
oct | 12610454146 |
9 | 3651166684 |
10 | 1445091430 |
11 | 681797642 |
12 | 343b5b91a |
13 | 1a05088b3 |
14 | d9cccb66 |
15 | 86d0038a |
hex | 56225866 |
1445091430 has 16 divisors (see below), whose sum is σ = 2611962144. Its totient is φ = 575637120.
The previous prime is 1445091421. The next prime is 1445091437. The reversal of 1445091430 is 341905441.
It is a junction number, because it is equal to n+sod(n) for n = 1445091392 and 1445091401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1445091437) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297402 + ... + 302221.
It is an arithmetic number, because the mean of its divisors is an integer number (163247634).
Almost surely, 21445091430 is an apocalyptic number.
1445091430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1445091430 is a deficient number, since it is larger than the sum of its proper divisors (1166870714).
1445091430 is a wasteful number, since it uses less digits than its factorization.
1445091430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 599871.
The product of its (nonzero) digits is 8640, while the sum is 31.
The square root of 1445091430 is about 38014.3582084454. The cubic root of 1445091430 is about 1130.5725633625.
Adding to 1445091430 its reverse (341905441), we get a palindrome (1786996871).
The spelling of 1445091430 in words is "one billion, four hundred forty-five million, ninety-one thousand, four hundred thirty".
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