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5278208 = 2913261
BaseRepresentation
bin10100001000101000000000
3100221011100012
4110020220000
52322400313
6305044052
762602235
oct24105000
910834305
105278208
112a85661
121926628
13112a600
149b578c
156e3da8
hex508a00

5278208 has 60 divisors (see below), whose sum is σ = 11606958. Its totient is φ = 2396160.

The previous prime is 5278171. The next prime is 5278223. The reversal of 5278208 is 8028725.

It can be written as a sum of positive squares in 3 ways, for example, as 1149184 + 4129024 = 1072^2 + 2032^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86498 + ... + 86558.

Almost surely, 25278208 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 5278208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5803479).

5278208 is an abundant number, since it is smaller than the sum of its proper divisors (6328750).

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

5278208 is an equidigital number, since it uses as much as digits as its factorization.

5278208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 5278208 is about 2297.4350915750. The cubic root of 5278208 is about 174.1120518404.

The spelling of 5278208 in words is "five million, two hundred seventy-eight thousand, two hundred eight".

Divisors: 1 2 4 8 13 16 26 32 52 61 64 104 122 128 169 208 244 256 338 416 488 512 676 793 832 976 1352 1586 1664 1952 2704 3172 3328 3904 5408 6344 6656 7808 10309 10816 12688 15616 20618 21632 25376 31232 41236 43264 50752 82472 86528 101504 164944 203008 329888 406016 659776 1319552 2639104 5278208