Base | Representation |
---|---|
bin | 10001001010110… |
… | …11101011011111 |
3 | 101001000111121102 |
4 | 20211123223133 |
5 | 243332433211 |
6 | 22143023315 |
7 | 3366144536 |
oct | 1045335337 |
9 | 331014542 |
10 | 144030431 |
11 | 74335216 |
12 | 4029ab3b |
13 | 23abba0c |
14 | 151b331d |
15 | c9a0a3b |
hex | 895badf |
144030431 has 8 divisors (see below), whose sum is σ = 151929600. Its totient is φ = 136163160.
The previous prime is 144030427. The next prime is 144030437. The reversal of 144030431 is 134030441.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 144030431 - 22 = 144030427 is a prime.
It is a super-2 number, since 2×1440304312 = 41489530108091522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144030437) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 17048.
It is an arithmetic number, because the mean of its divisors is an integer number (18991200).
Almost surely, 2144030431 is an apocalyptic number.
144030431 is a deficient number, since it is larger than the sum of its proper divisors (7899169).
144030431 is a wasteful number, since it uses less digits than its factorization.
144030431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15949.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 144030431 is about 12001.2678913521. The cubic root of 144030431 is about 524.1851983622.
Adding to 144030431 its reverse (134030441), we get a palindrome (278060872).
The spelling of 144030431 in words is "one hundred forty-four million, thirty thousand, four hundred thirty-one".
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