Base | Representation |
---|---|
bin | 1110101010001… |
… | …1011111101010 |
3 | 11021200212102100 |
4 | 3222203133222 |
5 | 111220041312 |
6 | 10033514230 |
7 | 1344426426 |
oct | 352433752 |
9 | 137625370 |
10 | 61487082 |
11 | 31787178 |
12 | 18712976 |
13 | c97aab7 |
14 | 8247b86 |
15 | 55e85dc |
hex | 3aa37ea |
61487082 has 12 divisors (see below), whose sum is σ = 133222050. Its totient is φ = 20495688.
The previous prime is 61487057. The next prime is 61487087. The reversal of 61487082 is 28078416.
It can be written as a sum of positive squares in only one way, i.e., 59768361 + 1718721 = 7731^2 + 1311^2 .
It is a super-2 number, since 2×614870822 = 7561322505749448, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (61487087) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1707957 + ... + 1707992.
Almost surely, 261487082 is an apocalyptic number.
61487082 is an abundant number, since it is smaller than the sum of its proper divisors (71734968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61487082 is a wasteful number, since it uses less digits than its factorization.
61487082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3415957 (or 3415954 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 61487082 is about 7841.3699058264. The cubic root of 61487082 is about 394.6946997312.
The spelling of 61487082 in words is "sixty-one million, four hundred eighty-seven thousand, eighty-two".
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