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5249805 = 351131817
BaseRepresentation
bin10100000001101100001101
3100212201101020
4110001230031
52320443210
6304304353
762423361
oct24015415
910781336
105249805
112a66290
1219120b9
13111a6c2
149a92a1
156da770
hex501b0d

5249805 has 16 divisors (see below), whose sum is σ = 9163584. Its totient is φ = 2545280.

The previous prime is 5249801. The next prime is 5249813. The reversal of 5249805 is 5089425.

It is not a de Polignac number, because 5249805 - 22 = 5249801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15744 + ... + 16073.

It is an arithmetic number, because the mean of its divisors is an integer number (572724).

Almost surely, 25249805 is an apocalyptic number.

5249805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5249805 is a deficient number, since it is larger than the sum of its proper divisors (3913779).

5249805 is a wasteful number, since it uses less digits than its factorization.

5249805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31836.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 5249805 is about 2291.2452945942. The cubic root of 5249805 is about 173.7991803917.

The spelling of 5249805 in words is "five million, two hundred forty-nine thousand, eight hundred five".

Divisors: 1 3 5 11 15 33 55 165 31817 95451 159085 349987 477255 1049961 1749935 5249805