Base | Representation |
---|---|
bin | 11010010111001… |
… | …011110000011001 |
3 | 1010211020102001221 |
4 | 122113023300121 |
5 | 1401211110311 |
6 | 111515412041 |
7 | 13650234610 |
oct | 3227136031 |
9 | 1124212057 |
10 | 442285081 |
11 | 207727367 |
12 | 104154021 |
13 | 70828264 |
14 | 42a50877 |
15 | 28c67671 |
hex | 1a5cbc19 |
442285081 has 8 divisors (see below), whose sum is σ = 517797504. Its totient is φ = 369854880.
The previous prime is 442285079. The next prime is 442285093. The reversal of 442285081 is 180582244.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 442285081 - 21 = 442285079 is a prime.
It is a super-2 number, since 2×4422850812 = 391232185750353122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (442285001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770245 + ... + 770818.
It is an arithmetic number, because the mean of its divisors is an integer number (64724688).
Almost surely, 2442285081 is an apocalyptic number.
442285081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.
It is an amenable number.
442285081 is a deficient number, since it is larger than the sum of its proper divisors (75512423).
442285081 is a wasteful number, since it uses less digits than its factorization.
442285081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1541111.
The product of its (nonzero) digits is 20480, while the sum is 34.
The square root of 442285081 is about 21030.5749089272. The cubic root of 442285081 is about 761.9048942920.
The spelling of 442285081 in words is "four hundred forty-two million, two hundred eighty-five thousand, eighty-one".
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