Base | Representation |
---|---|
bin | 1111100000010… |
… | …0101001110001 |
3 | 11112100220110000 |
4 | 3320010221301 |
5 | 113121441034 |
6 | 10241500213 |
7 | 1416516036 |
oct | 370045161 |
9 | 145326400 |
10 | 65030769 |
11 | 33787641 |
12 | 19941669 |
13 | 1061ba5b |
14 | 88cb38d |
15 | 5a98599 |
hex | 3e04a71 |
65030769 has 20 divisors (see below), whose sum is σ = 98118900. Its totient is φ = 42919200.
The previous prime is 65030767. The next prime is 65030773. The reversal of 65030769 is 96703056.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 49914225 + 15116544 = 7065^2 + 3888^2 .
It is not a de Polignac number, because 65030769 - 21 = 65030767 is a prime.
It is a super-2 number, since 2×650307692 = 8458001833462722, which contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (65030761) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4207 + ... + 12155.
It is an arithmetic number, because the mean of its divisors is an integer number (4905945).
Almost surely, 265030769 is an apocalyptic number.
It is an amenable number.
65030769 is a deficient number, since it is larger than the sum of its proper divisors (33088131).
65030769 is a wasteful number, since it uses less digits than its factorization.
65030769 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8062 (or 8053 counting only the distinct ones).
The product of its (nonzero) digits is 34020, while the sum is 36.
The square root of 65030769 is about 8064.1657349040. The cubic root of 65030769 is about 402.1360087795.
The spelling of 65030769 in words is "sixty-five million, thirty thousand, seven hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •