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5285540 = 2251329701
BaseRepresentation
bin10100001010011010100100
3100221112101202
4110022122210
52323114130
6305142032
762632511
oct24123244
910845352
105285540
112a90117
12192a918
131130a50
149b8308
156e6145
hex50a6a4

5285540 has 48 divisors (see below), whose sum is σ = 12383280. Its totient is φ = 1881600.

The previous prime is 5285537. The next prime is 5285551. The reversal of 5285540 is 455825.

It can be written as a sum of positive squares in 8 ways, for example, as 13924 + 5271616 = 118^2 + 2296^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7190 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (257985).

Almost surely, 25285540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5285540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6191640).

5285540 is an abundant number, since it is smaller than the sum of its proper divisors (7097740).

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

5285540 is a wasteful number, since it uses less digits than its factorization.

5285540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 5285540 is about 2299.0302303363. The cubic root of 5285540 is about 174.1926346767.

The spelling of 5285540 in words is "five million, two hundred eighty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 13 20 26 29 52 58 65 116 130 145 260 290 377 580 701 754 1402 1508 1885 2804 3505 3770 7010 7540 9113 14020 18226 20329 36452 40658 45565 81316 91130 101645 182260 203290 264277 406580 528554 1057108 1321385 2642770 5285540