Base | Representation |
---|---|
bin | 1000010110010110110… |
… | …1110111101101000110 |
3 | 111201020121111112222120 |
4 | 2011211231313231012 |
5 | 4322231223203410 |
6 | 145521242310410 |
7 | 13235405441646 |
oct | 2054555675506 |
9 | 451217445876 |
10 | 143440444230 |
11 | 55918433886 |
12 | 23971ab8406 |
13 | 106ac5a8905 |
14 | 6d2a526526 |
15 | 3ae7cb7570 |
hex | 2165b77b46 |
143440444230 has 128 divisors (see below), whose sum is σ = 371025308160. Its totient is φ = 35358136320.
The previous prime is 143440444223. The next prime is 143440444283. The reversal of 143440444230 is 32444044341.
It is a super-2 number, since 2×1434404442302 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 143440444191 and 143440444200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64120672 + ... + 64122908.
It is an arithmetic number, because the mean of its divisors is an integer number (2898635220).
Almost surely, 2143440444230 is an apocalyptic number.
143440444230 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 143440444230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185512654080).
143440444230 is an abundant number, since it is smaller than the sum of its proper divisors (227584863930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
143440444230 is a wasteful number, since it uses less digits than its factorization.
143440444230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4454.
The product of its (nonzero) digits is 73728, while the sum is 33.
Adding to 143440444230 its reverse (32444044341), we get a palindrome (175884488571).
The spelling of 143440444230 in words is "one hundred forty-three billion, four hundred forty million, four hundred forty-four thousand, two hundred thirty".
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