Search a number
-
+
42817299 = 372038919
BaseRepresentation
bin1010001101010…
…1011100010011
32222120100021220
42203111130103
541430123144
64125420123
71026640530
oct243253423
988510256
1042817299
11221952a8
121240a643
138b41ca5
145987d87
153b5b919
hex28d5713

42817299 has 8 divisors (see below), whose sum is σ = 65245440. Its totient is φ = 24467016.

The previous prime is 42817267. The next prime is 42817301. The reversal of 42817299 is 99271824.

42817299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42817299 - 25 = 42817267 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 42817299.

It is not an unprimeable number, because it can be changed into a prime (42817249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019439 + ... + 1019480.

It is an arithmetic number, because the mean of its divisors is an integer number (8155680).

Almost surely, 242817299 is an apocalyptic number.

42817299 is a deficient number, since it is larger than the sum of its proper divisors (22428141).

42817299 is a wasteful number, since it uses less digits than its factorization.

42817299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038929.

The product of its digits is 72576, while the sum is 42.

The square root of 42817299 is about 6543.4928746045. The cubic root of 42817299 is about 349.8429199892.

It can be divided in two parts, 428172 and 99, that multiplied together give a triangular number (42389028 = T9207).

The spelling of 42817299 in words is "forty-two million, eight hundred seventeen thousand, two hundred ninety-nine".

Divisors: 1 3 7 21 2038919 6116757 14272433 42817299