Base | Representation |
---|---|
bin | 111010101000… |
… | …1111000000001 |
3 | 2010211221221002 |
4 | 1311101320001 |
5 | 30332302230 |
6 | 3014541345 |
7 | 522214562 |
oct | 165217001 |
9 | 63757832 |
10 | 30744065 |
11 | 16399520 |
12 | a367855 |
13 | 64a5871 |
14 | 4124169 |
15 | 2a74545 |
hex | 1d51e01 |
30744065 has 16 divisors (see below), whose sum is σ = 40818816. Its totient is φ = 22041600.
The previous prime is 30744059. The next prime is 30744067. The reversal of 30744065 is 56044703.
It is not a de Polignac number, because 30744065 - 26 = 30744001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30744067) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32 + ... + 7841.
It is an arithmetic number, because the mean of its divisors is an integer number (2551176).
Almost surely, 230744065 is an apocalyptic number.
It is an amenable number.
30744065 is a deficient number, since it is larger than the sum of its proper divisors (10074751).
30744065 is a wasteful number, since it uses less digits than its factorization.
30744065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7960.
The product of its (nonzero) digits is 10080, while the sum is 29.
The square root of 30744065 is about 5544.7330864524. The cubic root of 30744065 is about 313.2711705816.
Adding to 30744065 its reverse (56044703), we get a palindrome (86788768).
The spelling of 30744065 in words is "thirty million, seven hundred forty-four thousand, sixty-five".
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