Base | Representation |
---|---|
bin | 10001001111001… |
… | …11111101100100 |
3 | 101002002200210210 |
4 | 20213213331210 |
5 | 244004330103 |
6 | 22203215420 |
7 | 3404060001 |
oct | 1047477544 |
9 | 332080723 |
10 | 144605028 |
11 | 74697997 |
12 | 40517570 |
13 | 23c60409 |
14 | 152c28a8 |
15 | ca65e03 |
hex | 89e7f64 |
144605028 has 48 divisors (see below), whose sum is σ = 351775424. Its totient is φ = 46189440.
The previous prime is 144605023. The next prime is 144605039. The reversal of 144605028 is 820506441.
It is a super-2 number, since 2×1446050282 = 41821228245761568, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 144604986 and 144605004.
It is not an unprimeable number, because it can be changed into a prime (144605023) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27318 + ... + 32178.
Almost surely, 2144605028 is an apocalyptic number.
It is an amenable number.
144605028 is an abundant number, since it is smaller than the sum of its proper divisors (207170396).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144605028 is a wasteful number, since it uses less digits than its factorization.
144605028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4972 (or 4970 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 30.
The square root of 144605028 is about 12025.1830755295. The cubic root of 144605028 is about 524.8813373537.
The spelling of 144605028 in words is "one hundred forty-four million, six hundred five thousand, twenty-eight".
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