Base | Representation |
---|---|
bin | 111010000101… |
… | …0010011111101 |
3 | 2010022001211122 |
4 | 1310022103331 |
5 | 30243412231 |
6 | 3004400325 |
7 | 516554153 |
oct | 164122375 |
9 | 63261748 |
10 | 30450941 |
11 | 16209274 |
12 | a2460a5 |
13 | 6402311 |
14 | 40893d3 |
15 | 2a1777b |
hex | 1d0a4fd |
30450941 has 4 divisors (see below), whose sum is σ = 30627132. Its totient is φ = 30274752.
The previous prime is 30450913. The next prime is 30450949. The reversal of 30450941 is 14905403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14905403 = 23 ⋅648061.
It can be written as a sum of positive squares in 2 ways, for example, as 21659716 + 8791225 = 4654^2 + 2965^2 .
It is a cyclic number.
It is not a de Polignac number, because 30450941 - 214 = 30434557 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30450941.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30450949) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87836 + ... + 88181.
It is an arithmetic number, because the mean of its divisors is an integer number (7656783).
Almost surely, 230450941 is an apocalyptic number.
It is an amenable number.
30450941 is a deficient number, since it is larger than the sum of its proper divisors (176191).
30450941 is a wasteful number, since it uses less digits than its factorization.
30450941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176190.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 30450941 is about 5518.2371279241. The cubic root of 30450941 is about 312.2723795248.
The spelling of 30450941 in words is "thirty million, four hundred fifty thousand, nine hundred forty-one".
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