Base | Representation |
---|---|
bin | 10001001100001… |
… | …11100101000000 |
3 | 101001100122021000 |
4 | 20212013211000 |
5 | 243404211430 |
6 | 22150532000 |
7 | 3400524006 |
oct | 1046074500 |
9 | 331318230 |
10 | 144210240 |
11 | 74448319 |
12 | 40367000 |
13 | 23b52805 |
14 | 1521ca76 |
15 | c9d8e60 |
hex | 8987940 |
144210240 has 112 divisors (see below), whose sum is σ = 508772160. Its totient is φ = 38453760.
The previous prime is 144210229. The next prime is 144210251. The reversal of 144210240 is 42012441.
144210240 is a `hidden beast` number, since 1 + 4 + 421 + 0 + 240 = 666.
It is an interprime number because it is at equal distance from previous prime (144210229) and next prime (144210251).
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 295 + ... + 16985.
Almost surely, 2144210240 is an apocalyptic number.
144210240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 144210240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254386080).
144210240 is an abundant number, since it is smaller than the sum of its proper divisors (364561920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144210240 is a wasteful number, since it uses less digits than its factorization.
144210240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16717 (or 16701 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
The square root of 144210240 is about 12008.7568049320. The cubic root of 144210240 is about 524.4032402965.
Adding to 144210240 its reverse (42012441), we get a palindrome (186222681).
The spelling of 144210240 in words is "one hundred forty-four million, two hundred ten thousand, two hundred forty".
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