Base | Representation |
---|---|
bin | 10001001100100… |
… | …00000100010111 |
3 | 101001102101221222 |
4 | 20212100010113 |
5 | 243411320030 |
6 | 22151400555 |
7 | 3401030255 |
oct | 1046200427 |
9 | 331371858 |
10 | 144245015 |
11 | 74471462 |
12 | 4038315b |
13 | 23b655a5 |
14 | 1522b5d5 |
15 | c9e43e5 |
hex | 8990117 |
144245015 has 16 divisors (see below), whose sum is σ = 179890176. Its totient is φ = 110916000.
The previous prime is 144245009. The next prime is 144245027. The reversal of 144245015 is 510542441.
It is not a de Polignac number, because 144245015 - 24 = 144244999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20324 + ... + 26486.
It is an arithmetic number, because the mean of its divisors is an integer number (11243136).
Almost surely, 2144245015 is an apocalyptic number.
144245015 is a deficient number, since it is larger than the sum of its proper divisors (35645161).
144245015 is a wasteful number, since it uses less digits than its factorization.
144245015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6350.
The product of its (nonzero) digits is 3200, while the sum is 26.
The square root of 144245015 is about 12010.2046194059. The cubic root of 144245015 is about 524.4453886142.
Adding to 144245015 its reverse (510542441), we get a palindrome (654787456).
The spelling of 144245015 in words is "one hundred forty-four million, two hundred forty-five thousand, fifteen".
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