Base | Representation |
---|---|
bin | 10001001101001… |
… | …01001010100110 |
3 | 101001120210111112 |
4 | 20212211022212 |
5 | 243422101210 |
6 | 22153305022 |
7 | 3401540225 |
oct | 1046451246 |
9 | 331523445 |
10 | 144331430 |
11 | 74520381 |
12 | 40405172 |
13 | 23b95a19 |
14 | 15250cbc |
15 | ca0ed05 |
hex | 89a52a6 |
144331430 has 16 divisors (see below), whose sum is σ = 260421264. Its totient is φ = 57593760.
The previous prime is 144331409. The next prime is 144331433. The reversal of 144331430 is 34133441.
It is a junction number, because it is equal to n+sod(n) for n = 144331396 and 144331405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144331433) 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, 12932 + ... + 21351.
It is an arithmetic number, because the mean of its divisors is an integer number (16276329).
Almost surely, 2144331430 is an apocalyptic number.
144331430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
144331430 is a deficient number, since it is larger than the sum of its proper divisors (116089834).
144331430 is a wasteful number, since it uses less digits than its factorization.
144331430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34711.
The product of its (nonzero) digits is 1728, while the sum is 23.
The square root of 144331430 is about 12013.8016464398. The cubic root of 144331430 is about 524.5500967991.
Adding to 144331430 its reverse (34133441), we get a palindrome (178464871).
The spelling of 144331430 in words is "one hundred forty-four million, three hundred thirty-one thousand, four hundred thirty".
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