Base | Representation |
---|---|
bin | 10001001100001… |
… | …01010000011010 |
3 | 101001100011012210 |
4 | 20212011100122 |
5 | 243403410410 |
6 | 22150415550 |
7 | 3400454202 |
oct | 1046052032 |
9 | 331304183 |
10 | 144200730 |
11 | 74441163 |
12 | 403615b6 |
13 | 23b4b39b |
14 | 15219402 |
15 | c9d6220 |
hex | 898541a |
144200730 has 32 divisors (see below), whose sum is σ = 349515648. Its totient is φ = 38072000.
The previous prime is 144200723. The next prime is 144200759. The reversal of 144200730 is 37002441.
It is a junction number, because it is equal to n+sod(n) for n = 144200697 and 144200706.
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, 20766 + ... + 26825.
It is an arithmetic number, because the mean of its divisors is an integer number (10922364).
Almost surely, 2144200730 is an apocalyptic number.
144200730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
144200730 is an abundant number, since it is smaller than the sum of its proper divisors (205314918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144200730 is a wasteful number, since it uses less digits than its factorization.
144200730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47702.
The product of its (nonzero) digits is 672, while the sum is 21.
The square root of 144200730 is about 12008.3608373500. The cubic root of 144200730 is about 524.3917127183.
The spelling of 144200730 in words is "one hundred forty-four million, two hundred thousand, seven hundred thirty".
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