Search a number
-
+
42479269 = 7193110303
BaseRepresentation
bin1010001000001…
…0111010100101
32221221011121021
42202002322211
541333314034
64114251141
71024032160
oct242027245
987834537
1042479269
1121a84338
1212286ab1
138a54181
1458daad7
153ae16b4
hex2882ea5

42479269 has 16 divisors (see below), whose sum is σ = 52756480. Its totient is φ = 33378480.

The previous prime is 42479263. The next prime is 42479279. The reversal of 42479269 is 96297424.

It is a cyclic number.

It is not a de Polignac number, because 42479269 - 29 = 42478757 is a prime.

It is a super-2 number, since 2×424792692 = 3608976589548722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42479263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029 + ... + 9274.

It is an arithmetic number, because the mean of its divisors is an integer number (3297280).

Almost surely, 242479269 is an apocalyptic number.

It is an amenable number.

42479269 is a deficient number, since it is larger than the sum of its proper divisors (10277211).

42479269 is a wasteful number, since it uses less digits than its factorization.

42479269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360.

The product of its digits is 217728, while the sum is 43.

The square root of 42479269 is about 6517.6122161417. The cubic root of 42479269 is about 348.9198508899.

The spelling of 42479269 in words is "forty-two million, four hundred seventy-nine thousand, two hundred sixty-nine".

Divisors: 1 7 19 31 133 217 589 4123 10303 72121 195757 319393 1370299 2235751 6068467 42479269