Base | Representation |
---|---|
bin | 111010011110… |
… | …0000101111001 |
3 | 2010200102112111 |
4 | 1310330011321 |
5 | 30321423331 |
6 | 3013012321 |
7 | 521363500 |
oct | 164740571 |
9 | 63612474 |
10 | 30654841 |
11 | 16338488 |
12 | a3240a1 |
13 | 6474079 |
14 | 40dd837 |
15 | 2a57db1 |
hex | 1d3c179 |
30654841 has 6 divisors (see below), whose sum is σ = 35659770. Its totient is φ = 26275536.
The previous prime is 30654823. The next prime is 30654853. The reversal of 30654841 is 14845603.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 27342441 + 3312400 = 5229^2 + 1820^2 .
It is a de Polignac number, because none of the positive numbers 2k-30654841 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30654641) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312756 + ... + 312853.
It is an arithmetic number, because the mean of its divisors is an integer number (5943295).
Almost surely, 230654841 is an apocalyptic number.
It is an amenable number.
30654841 is a deficient number, since it is larger than the sum of its proper divisors (5004929).
30654841 is an equidigital number, since it uses as much as digits as its factorization.
30654841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 625623 (or 625616 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 31.
The square root of 30654841 is about 5536.6814067634. The cubic root of 30654841 is about 312.9678232497.
The spelling of 30654841 in words is "thirty million, six hundred fifty-four thousand, eight hundred forty-one".
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