Base | Representation |
---|---|
bin | 111100000011101… |
… | …1110011001100010 |
3 | 12012110000001121100 |
4 | 1320013132121202 |
5 | 13111344203232 |
6 | 531545135230 |
7 | 100640063556 |
oct | 17007363142 |
9 | 5173001540 |
10 | 2015225442 |
11 | 9445a677a |
12 | 482a8a516 |
13 | 2616784b9 |
14 | 1518dd866 |
15 | bbdbdc7c |
hex | 781de662 |
2015225442 has 24 divisors (see below), whose sum is σ = 4368115440. Its totient is φ = 671465880.
The previous prime is 2015225411. The next prime is 2015225453. The reversal of 2015225442 is 2445225102.
It is a super-2 number, since 2×20152254422 = 8122267164168190728, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24717 + ... + 68127.
It is an arithmetic number, because the mean of its divisors is an integer number (182004810).
Almost surely, 22015225442 is an apocalyptic number.
2015225442 is an abundant number, since it is smaller than the sum of its proper divisors (2352889998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2015225442 is a wasteful number, since it uses less digits than its factorization.
2015225442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45998 (or 45995 counting only the distinct ones).
The product of its (nonzero) digits is 6400, while the sum is 27.
The square root of 2015225442 is about 44891.2624237724. The cubic root of 2015225442 is about 1263.1101135276.
The spelling of 2015225442 in words is "two billion, fifteen million, two hundred twenty-five thousand, four hundred forty-two".
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