Base | Representation |
---|---|
bin | 111001011110… |
… | …0101100011111 |
3 | 2002200220201220 |
4 | 1302330230133 |
5 | 30203224043 |
6 | 2553504423 |
7 | 514061244 |
oct | 162745437 |
9 | 62626656 |
10 | 30133023 |
11 | 16011428 |
12 | a112113 |
13 | 63206bb |
14 | 40055cb |
15 | 29a3483 |
hex | 1cbcb1f |
30133023 has 8 divisors (see below), whose sum is σ = 41473536. Its totient is φ = 19440600.
The previous prime is 30133021. The next prime is 30133057. The reversal of 30133023 is 32033103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30133023 - 21 = 30133021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30132993 and 30133011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30133021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161913 + ... + 162098.
It is an arithmetic number, because the mean of its divisors is an integer number (5184192).
Almost surely, 230133023 is an apocalyptic number.
30133023 is a deficient number, since it is larger than the sum of its proper divisors (11340513).
30133023 is a wasteful number, since it uses less digits than its factorization.
30133023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 324045.
The product of its (nonzero) digits is 162, while the sum is 15.
The square root of 30133023 is about 5489.3554266416. The cubic root of 30133023 is about 311.1818327838.
Adding to 30133023 its reverse (32033103), we get a palindrome (62166126).
The spelling of 30133023 in words is "thirty million, one hundred thirty-three thousand, twenty-three".
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