Base | Representation |
---|---|
bin | 10010111001010… |
… | …11110100010001 |
3 | 102001021100221112 |
4 | 21130223310101 |
5 | 311034430244 |
6 | 23421303105 |
7 | 3633231152 |
oct | 1134536421 |
9 | 361240845 |
10 | 158514449 |
11 | 81528285 |
12 | 45104a95 |
13 | 26ac0542 |
14 | 170a3929 |
15 | ddb239e |
hex | 972bd11 |
158514449 has 4 divisors (see below), whose sum is σ = 159968820. Its totient is φ = 157060080.
The previous prime is 158514407. The next prime is 158514451. The reversal of 158514449 is 944415851.
158514449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944415851 = 53 ⋅17819167.
It can be written as a sum of positive squares in 2 ways, for example, as 65044225 + 93470224 = 8065^2 + 9668^2 .
It is a cyclic number.
It is not a de Polignac number, because 158514449 - 212 = 158510353 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (158514649) 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, 727022 + ... + 727239.
It is an arithmetic number, because the mean of its divisors is an integer number (39992205).
Almost surely, 2158514449 is an apocalyptic number.
It is an amenable number.
158514449 is a deficient number, since it is larger than the sum of its proper divisors (1454371).
158514449 is a wasteful number, since it uses less digits than its factorization.
158514449 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1454370.
The product of its digits is 115200, while the sum is 41.
The square root of 158514449 is about 12590.2521420343. The cubic root of 158514449 is about 541.1981272925.
The spelling of 158514449 in words is "one hundred fifty-eight million, five hundred fourteen thousand, four hundred forty-nine".
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