Base | Representation |
---|---|
bin | 111100110100100… |
… | …111110011111110 |
3 | 2122010010002101210 |
4 | 330310213303332 |
5 | 4042212140033 |
6 | 245131145250 |
7 | 34200330225 |
oct | 7464476376 |
9 | 2563102353 |
10 | 1020427518 |
11 | 484006330 |
12 | 2458a5226 |
13 | 133540086 |
14 | 99747cbc |
15 | 5e8b8d63 |
hex | 3cd27cfe |
1020427518 has 32 divisors (see below), whose sum is σ = 2228123520. Its totient is φ = 308979360.
The previous prime is 1020427517. The next prime is 1020427519. The reversal of 1020427518 is 8157240201.
It is an interprime number because it is at equal distance from previous prime (1020427517) and next prime (1020427519).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1020427517) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90996 + ... + 101592.
It is an arithmetic number, because the mean of its divisors is an integer number (69628860).
Almost surely, 21020427518 is an apocalyptic number.
1020427518 is an abundant number, since it is smaller than the sum of its proper divisors (1207696002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1020427518 is a wasteful number, since it uses less digits than its factorization.
1020427518 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12072.
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 1020427518 is about 31944.1311980777. The cubic root of 1020427518 is about 1006.7633269512.
Adding to 1020427518 its reverse (8157240201), we get a palindrome (9177667719).
The spelling of 1020427518 in words is "one billion, twenty million, four hundred twenty-seven thousand, five hundred eighteen".
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