Search a number
-
+
5249808 = 243236457
BaseRepresentation
bin10100000001101100010000
3100212201101100
4110001230100
52320443213
6304304400
762423364
oct24015420
910781340
105249808
112a66293
121912100
13111a6c5
149a92a4
156da773
hex501b10

5249808 has 30 divisors (see below), whose sum is σ = 14692574. Its totient is φ = 1749888.

The previous prime is 5249801. The next prime is 5249813. The reversal of 5249808 is 8089425.

It can be written as a sum of positive squares in only one way, i.e., 4875264 + 374544 = 2208^2 + 612^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5249801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18085 + ... + 18372.

Almost surely, 25249808 is an apocalyptic number.

It is an amenable number.

5249808 is an abundant number, since it is smaller than the sum of its proper divisors (9442766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5249808 is a wasteful number, since it uses less digits than its factorization.

5249808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36471 (or 36462 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 5249808 is about 2291.2459492599. The cubic root of 5249808 is about 173.7992134975.

The spelling of 5249808 in words is "five million, two hundred forty-nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 36457 72914 109371 145828 218742 291656 328113 437484 583312 656226 874968 1312452 1749936 2624904 5249808