Base | Representation |
---|---|
bin | 110101010101… |
… | …0111010100000 |
3 | 1221121200002011 |
4 | 1222222322200 |
5 | 24124304130 |
6 | 2435202304 |
7 | 456452620 |
oct | 152527240 |
9 | 57550064 |
10 | 27963040 |
11 | 1486a056 |
12 | 9446394 |
13 | 5a40aa1 |
14 | 39dc880 |
15 | 26c552a |
hex | 1aaaea0 |
27963040 has 48 divisors (see below), whose sum is σ = 75503232. Its totient is φ = 9586944.
The previous prime is 27963037. The next prime is 27963043. The reversal of 27963040 is 4036972.
It is an interprime number because it is at equal distance from previous prime (27963037) and next prime (27963043).
It is a junction number, because it is equal to n+sod(n) for n = 27962993 and 27963011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27963043) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11364 + ... + 13603.
It is an arithmetic number, because the mean of its divisors is an integer number (1572984).
Almost surely, 227963040 is an apocalyptic number.
27963040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
27963040 is an abundant number, since it is smaller than the sum of its proper divisors (47540192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27963040 is a wasteful number, since it uses less digits than its factorization.
27963040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24989 (or 24981 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 31.
The square root of 27963040 is about 5288.0090771480. The cubic root of 27963040 is about 303.5252284413.
The spelling of 27963040 in words is "twenty-seven million, nine hundred sixty-three thousand, forty".
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