Base | Representation |
---|---|
bin | 111001011100… |
… | …1101101011011 |
3 | 2002200021222000 |
4 | 1302321231123 |
5 | 30202331140 |
6 | 2553332043 |
7 | 514010505 |
oct | 162715533 |
9 | 62607860 |
10 | 30120795 |
11 | 16003221 |
12 | a107023 |
13 | 6317c73 |
14 | 4000d75 |
15 | 299ea30 |
hex | 1cb9b5b |
30120795 has 32 divisors (see below), whose sum is σ = 56371200. Its totient is φ = 15217632.
The previous prime is 30120781. The next prime is 30120799. The reversal of 30120795 is 59702103.
It is not a de Polignac number, because 30120795 - 27 = 30120667 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (30120799) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3307 + ... + 8436.
It is an arithmetic number, because the mean of its divisors is an integer number (1761600).
Almost surely, 230120795 is an apocalyptic number.
30120795 is a deficient number, since it is larger than the sum of its proper divisors (26250405).
30120795 is a wasteful number, since it uses less digits than its factorization.
30120795 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11776 (or 11770 counting only the distinct ones).
The product of its (nonzero) digits is 1890, while the sum is 27.
The square root of 30120795 is about 5488.2415216534. The cubic root of 30120795 is about 311.1397344933.
Adding to 30120795 its reverse (59702103), we get a palindrome (89822898).
The spelling of 30120795 in words is "thirty million, one hundred twenty thousand, seven hundred ninety-five".
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