Base | Representation |
---|---|
bin | 10000101100011… |
… | …10100000100000 |
3 | 100202111222200200 |
4 | 20112032200200 |
5 | 241322404240 |
6 | 21521345200 |
7 | 3320233323 |
oct | 1026164040 |
9 | 322458620 |
10 | 140044320 |
11 | 72062409 |
12 | 3aa98200 |
13 | 23024580 |
14 | 148567ba |
15 | c464930 |
hex | 858e820 |
140044320 has 144 divisors (see below), whose sum is σ = 514731672. Its totient is φ = 34467840.
The previous prime is 140044319. The next prime is 140044321. The reversal of 140044320 is 23440041.
It is an interprime number because it is at equal distance from previous prime (140044319) and next prime (140044321).
It can be written as a sum of positive squares in 4 ways, for example, as 113294736 + 26749584 = 10644^2 + 5172^2 .
It is a tau number, because it is divible by the number of its divisors (144).
It is a super-2 number, since 2×1400443202 = 39224823128524800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 140044293 and 140044302.
It is not an unprimeable number, because it can be changed into a prime (140044321) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14980 + ... + 22460.
Almost surely, 2140044320 is an apocalyptic number.
140044320 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 140044320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257365836).
140044320 is an abundant number, since it is smaller than the sum of its proper divisors (374687352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140044320 is a wasteful number, since it uses less digits than its factorization.
140044320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7515 (or 7504 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 140044320 is about 11834.0322798275. The cubic root of 140044320 is about 519.3041975800.
Adding to 140044320 its reverse (23440041), we get a palindrome (163484361).
The spelling of 140044320 in words is "one hundred forty million, forty-four thousand, three hundred twenty".
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