Base | Representation |
---|---|
bin | 111010101010… |
… | …1111101100101 |
3 | 2010212210220002 |
4 | 1311111331211 |
5 | 30333321210 |
6 | 3015151045 |
7 | 522314435 |
oct | 165257545 |
9 | 63783802 |
10 | 30760805 |
11 | 16400059 |
12 | a375485 |
13 | 64b037a |
14 | 412a2c5 |
15 | 2a794a5 |
hex | 1d55f65 |
30760805 has 4 divisors (see below), whose sum is σ = 36912972. Its totient is φ = 24608640.
The previous prime is 30760799. The next prime is 30760817. The reversal of 30760805 is 50806703.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 14122564 + 16638241 = 3758^2 + 4079^2 .
It is not a de Polignac number, because 30760805 - 28 = 30760549 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076076 + ... + 3076085.
It is an arithmetic number, because the mean of its divisors is an integer number (9228243).
Almost surely, 230760805 is an apocalyptic number.
It is an amenable number.
30760805 is a deficient number, since it is larger than the sum of its proper divisors (6152167).
30760805 is an equidigital number, since it uses as much as digits as its factorization.
30760805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6152166.
The product of its (nonzero) digits is 5040, while the sum is 29.
The square root of 30760805 is about 5546.2424216761. The cubic root of 30760805 is about 313.3280184954.
The spelling of 30760805 in words is "thirty million, seven hundred sixty thousand, eight hundred five".
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