Base | Representation |
---|---|
bin | 1111100001000… |
… | …0110100000100 |
3 | 11112110102202212 |
4 | 3320100310010 |
5 | 113130034310 |
6 | 10242522552 |
7 | 1420114205 |
oct | 370206404 |
9 | 145412685 |
10 | 65080580 |
11 | 33811004 |
12 | 19966458 |
13 | 10638626 |
14 | 89015ac |
15 | 5aa8205 |
hex | 3e10d04 |
65080580 has 24 divisors (see below), whose sum is σ = 136864728. Its totient is φ = 25995008.
The previous prime is 65080559. The next prime is 65080591. The reversal of 65080580 is 8508056.
It can be written as a sum of positive squares in 4 ways, for example, as 3740356 + 61340224 = 1934^2 + 7832^2 .
It is a super-3 number, since 3×650805803 (a number of 24 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15242 + ... + 19038.
It is an arithmetic number, because the mean of its divisors is an integer number (5702697).
Almost surely, 265080580 is an apocalyptic number.
It is an amenable number.
65080580 is an abundant number, since it is smaller than the sum of its proper divisors (71784148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65080580 is a wasteful number, since it uses less digits than its factorization.
65080580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4663 (or 4661 counting only the distinct ones).
The product of its (nonzero) digits is 9600, while the sum is 32.
The square root of 65080580 is about 8067.2535599174. The cubic root of 65080580 is about 402.2386560082.
The spelling of 65080580 in words is "sixty-five million, eighty thousand, five hundred eighty".
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