Base | Representation |
---|---|
bin | 10001001111011… |
… | …01100011011010 |
3 | 101002010212020000 |
4 | 20213231203122 |
5 | 244011043210 |
6 | 22203513430 |
7 | 3404213526 |
oct | 1047554332 |
9 | 332125200 |
10 | 144627930 |
11 | 74703117 |
12 | 40528876 |
13 | 23c6a975 |
14 | 152cad86 |
15 | ca6cac0 |
hex | 89ed8da |
144627930 has 160 divisors (see below), whose sum is σ = 413994240. Its totient is φ = 36167040.
The previous prime is 144627919. The next prime is 144627947. The reversal of 144627930 is 39726441.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1103965 + ... + 1104095.
It is an arithmetic number, because the mean of its divisors is an integer number (2587464).
Almost surely, 2144627930 is an apocalyptic number.
144627930 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 144627930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206997120).
144627930 is an abundant number, since it is smaller than the sum of its proper divisors (269366310).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144627930 is a wasteful number, since it uses less digits than its factorization.
144627930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 226 (or 217 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The square root of 144627930 is about 12026.1352894436. The cubic root of 144627930 is about 524.9090454678.
The spelling of 144627930 in words is "one hundred forty-four million, six hundred twenty-seven thousand, nine hundred thirty".
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