Base | Representation |
---|---|
bin | 10001010001011… |
… | …00110000101110 |
3 | 101002122000100220 |
4 | 20220230300232 |
5 | 244042334310 |
6 | 22213232210 |
7 | 3406342404 |
oct | 1050546056 |
9 | 332560326 |
10 | 144886830 |
11 | 7486a690 |
12 | 40632666 |
13 | 2402b76a |
14 | 15357474 |
15 | cabe670 |
hex | 8a2cc2e |
144886830 has 64 divisors (see below), whose sum is σ = 385060608. Its totient is φ = 34594560.
The previous prime is 144886811. The next prime is 144886843. The reversal of 144886830 is 38688441.
It is a super-4 number, since 4×1448868304 (a number of 34 digits) contains 4444 as substring.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18834 + ... + 25386.
It is an arithmetic number, because the mean of its divisors is an integer number (6016572).
Almost surely, 2144886830 is an apocalyptic number.
144886830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 144886830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192530304).
144886830 is an abundant number, since it is smaller than the sum of its proper divisors (240173778).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144886830 is a wasteful number, since it uses less digits than its factorization.
144886830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6641.
The product of its (nonzero) digits is 147456, while the sum is 42.
The square root of 144886830 is about 12036.8945330596. The cubic root of 144886830 is about 525.2220738505. Note that the first 3 decimals are identical.
The spelling of 144886830 in words is "one hundred forty-four million, eight hundred eighty-six thousand, eight hundred thirty".
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