Base | Representation |
---|---|
bin | 1111100011100… |
… | …0001111110101 |
3 | 11112202122100010 |
4 | 3320320033311 |
5 | 113200221401 |
6 | 10250210433 |
7 | 1421356131 |
oct | 370701765 |
9 | 145678303 |
10 | 65242101 |
11 | 339113a1 |
12 | 19a23a19 |
13 | 10693cc2 |
14 | 89443c1 |
15 | 5adaed6 |
hex | 3e383f5 |
65242101 has 4 divisors (see below), whose sum is σ = 86989472. Its totient is φ = 43494732.
The previous prime is 65242091. The next prime is 65242127. The reversal of 65242101 is 10124256.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 65242101 - 25 = 65242069 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65242171) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10873681 + ... + 10873686.
It is an arithmetic number, because the mean of its divisors is an integer number (21747368).
Almost surely, 265242101 is an apocalyptic number.
It is an amenable number.
65242101 is a deficient number, since it is larger than the sum of its proper divisors (21747371).
65242101 is a wasteful number, since it uses less digits than its factorization.
65242101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21747370.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 65242101 is about 8077.2582600781. The cubic root of 65242101 is about 402.5711480004.
Adding to 65242101 its reverse (10124256), we get a palindrome (75366357).
The spelling of 65242101 in words is "sixty-five million, two hundred forty-two thousand, one hundred one".
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