Base | Representation |
---|---|
bin | 1101000010100101… |
… | …10001100000000100 |
3 | 200001220122200112121 |
4 | 12201102301200010 |
5 | 103314230123140 |
6 | 3114412055324 |
7 | 335330456152 |
oct | 64122614004 |
9 | 20056580477 |
10 | 7001020420 |
11 | 2a72991299 |
12 | 1434764544 |
13 | 8775a2544 |
14 | 4a5b443d2 |
15 | 2ae96b64a |
hex | 1a14b1804 |
7001020420 has 24 divisors (see below), whose sum is σ = 14706244224. Its totient is φ = 2799626976.
The previous prime is 7001020409. The next prime is 7001020463. The reversal of 7001020420 is 240201007.
It is a junction number, because it is equal to n+sod(n) for n = 7001020394 and 7001020403.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27579 + ... + 121501.
It is an arithmetic number, because the mean of its divisors is an integer number (612760176).
Almost surely, 27001020420 is an apocalyptic number.
It is an amenable number.
7001020420 is an abundant number, since it is smaller than the sum of its proper divisors (7705223804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7001020420 is a wasteful number, since it uses less digits than its factorization.
7001020420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97659 (or 97657 counting only the distinct ones).
The product of its (nonzero) digits is 112, while the sum is 16.
The square root of 7001020420 is about 83672.1006070721. The cubic root of 7001020420 is about 1913.0241303150.
Adding to 7001020420 its reverse (240201007), we get a palindrome (7241221427).
The spelling of 7001020420 in words is "seven billion, one million, twenty thousand, four hundred twenty".
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