Base | Representation |
---|---|
bin | 10010111010010… |
… | …00000010000111 |
3 | 102001111020111001 |
4 | 21131020002013 |
5 | 311102130043 |
6 | 23423554131 |
7 | 3634222126 |
oct | 1135100207 |
9 | 361436431 |
10 | 158630023 |
11 | 815a70a2 |
12 | 4515b947 |
13 | 26b31026 |
14 | 170d3abd |
15 | ddd674d |
hex | 9748087 |
158630023 has 4 divisors (see below), whose sum is σ = 158956240. Its totient is φ = 158303808.
The previous prime is 158629987. The next prime is 158630027. The reversal of 158630023 is 320036851.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 158630023 - 213 = 158621831 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 158629973 and 158630000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (158630027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162378 + ... + 163351.
It is an arithmetic number, because the mean of its divisors is an integer number (39739060).
Almost surely, 2158630023 is an apocalyptic number.
158630023 is a deficient number, since it is larger than the sum of its proper divisors (326217).
158630023 is an equidigital number, since it uses as much as digits as its factorization.
158630023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 326216.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 158630023 is about 12594.8411264295. The cubic root of 158630023 is about 541.3296257929.
Adding to 158630023 its reverse (320036851), we get a palindrome (478666874).
The spelling of 158630023 in words is "one hundred fifty-eight million, six hundred thirty thousand, twenty-three".
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