Base | Representation |
---|---|
bin | 10001001110000… |
… | …00011100001001 |
3 | 101001210110202010 |
4 | 20213000130021 |
5 | 243434140040 |
6 | 22155530133 |
7 | 3402514020 |
oct | 1047003411 |
9 | 331713663 |
10 | 144443145 |
11 | 74597300 |
12 | 40459949 |
13 | 23c04822 |
14 | 1527d8b7 |
15 | ca32e80 |
hex | 89c0709 |
144443145 has 48 divisors (see below), whose sum is σ = 290344320. Its totient is φ = 60023040.
The previous prime is 144443137. The next prime is 144443147. The reversal of 144443145 is 541344441.
It is not a de Polignac number, because 144443145 - 23 = 144443137 is a prime.
It is not an unprimeable number, because it can be changed into a prime (144443147) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7021 + ... + 18389.
It is an arithmetic number, because the mean of its divisors is an integer number (6048840).
Almost surely, 2144443145 is an apocalyptic number.
144443145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
144443145 is an abundant number, since it is smaller than the sum of its proper divisors (145901175).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144443145 is a wasteful number, since it uses less digits than its factorization.
144443145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11406 (or 11395 counting only the distinct ones).
The product of its digits is 15360, while the sum is 30.
The square root of 144443145 is about 12018.4501912684. The cubic root of 144443145 is about 524.6853988175.
Adding to 144443145 its reverse (541344441), we get a palindrome (685787586).
The spelling of 144443145 in words is "one hundred forty-four million, four hundred forty-three thousand, one hundred forty-five".
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