Base | Representation |
---|---|
bin | 1111100001000… |
… | …0111110100101 |
3 | 11112110110200210 |
4 | 3320100332211 |
5 | 113130100003 |
6 | 10242530033 |
7 | 1420116156 |
oct | 370207645 |
9 | 145413623 |
10 | 65081253 |
11 | 33811566 |
12 | 19966919 |
13 | 10638a23 |
14 | 890192d |
15 | 5aa8503 |
hex | 3e10fa5 |
65081253 has 8 divisors (see below), whose sum is σ = 91879488. Its totient is φ = 40835264.
The previous prime is 65081243. The next prime is 65081257. The reversal of 65081253 is 35218056.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 65081253 - 214 = 65064869 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 65081253.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65081257) 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, 638001 + ... + 638102.
It is an arithmetic number, because the mean of its divisors is an integer number (11484936).
Almost surely, 265081253 is an apocalyptic number.
It is an amenable number.
65081253 is a deficient number, since it is larger than the sum of its proper divisors (26798235).
65081253 is a wasteful number, since it uses less digits than its factorization.
65081253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1276123.
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 65081253 is about 8067.2952716508. The cubic root of 65081253 is about 402.2400425236.
The spelling of 65081253 in words is "sixty-five million, eighty-one thousand, two hundred fifty-three".
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