Base | Representation |
---|---|
bin | 1010001011110… |
… | …1100110011101 |
3 | 2222101101100002 |
4 | 2202331212131 |
5 | 41414012040 |
6 | 4123344045 |
7 | 1026053033 |
oct | 242754635 |
9 | 88341302 |
10 | 42719645 |
11 | 221289a1 |
12 | 12382025 |
13 | 8b096c7 |
14 | 5960553 |
15 | 3b3ca15 |
hex | 28bd99d |
42719645 has 18 divisors (see below), whose sum is σ = 53361882. Its totient is φ = 32831136.
The previous prime is 42719629. The next prime is 42719687. The reversal of 42719645 is 54691724.
It can be written as a sum of positive squares in 3 ways, for example, as 20994724 + 21724921 = 4582^2 + 4661^2 .
It is not a de Polignac number, because 42719645 - 24 = 42719629 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 42719599 and 42719608.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 540716 + ... + 540794.
It is an arithmetic number, because the mean of its divisors is an integer number (2964549).
Almost surely, 242719645 is an apocalyptic number.
It is an amenable number.
42719645 is a deficient number, since it is larger than the sum of its proper divisors (10642237).
42719645 is an frugal number, since it uses more digits than its factorization.
42719645 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 237 (or 121 counting only the distinct ones).
The product of its digits is 60480, while the sum is 38.
The square root of 42719645 is about 6536.0266982319. The cubic root of 42719645 is about 349.5767536912.
The spelling of 42719645 in words is "forty-two million, seven hundred nineteen thousand, six hundred forty-five".
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