Base | Representation |
---|---|
bin | 1101010011110011… |
… | …00101101110010000 |
3 | 200102222100121122012 |
4 | 12221321211232100 |
5 | 104113211213040 |
6 | 3141011002052 |
7 | 342033004250 |
oct | 65171455620 |
9 | 20388317565 |
10 | 7145413520 |
11 | 3037443a33 |
12 | 1474b99328 |
13 | 89b48a34b |
14 | 4badad960 |
15 | 2bc48e865 |
hex | 1a9e65b90 |
7145413520 has 40 divisors (see below), whose sum is σ = 18986385984. Its totient is φ = 2449855872.
The previous prime is 7145413487. The next prime is 7145413537. The reversal of 7145413520 is 253145417.
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 6379274 + ... + 6380393.
Almost surely, 27145413520 is an apocalyptic number.
7145413520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
7145413520 is an abundant number, since it is smaller than the sum of its proper divisors (11840972464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7145413520 is a wasteful number, since it uses less digits than its factorization.
7145413520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12759687 (or 12759681 counting only the distinct ones).
The product of its (nonzero) digits is 16800, while the sum is 32.
The square root of 7145413520 is about 84530.5478510580. The cubic root of 7145413520 is about 1926.0865082435.
Adding to 7145413520 its reverse (253145417), we get a palindrome (7398558937).
The spelling of 7145413520 in words is "seven billion, one hundred forty-five million, four hundred thirteen thousand, five hundred twenty".
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