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5278480 = 24565981
BaseRepresentation
bin10100001000101100010000
3100221011201021
4110020230100
52322402410
6305045224
762603104
oct24105420
910834637
105278480
112a85889
121926814
13112a77c
149b5904
156e3eda
hex508b10

5278480 has 20 divisors (see below), whose sum is σ = 12272652. Its totient is φ = 2111360.

The previous prime is 5278459. The next prime is 5278499. The reversal of 5278480 is 848725.

It can be written as a sum of positive squares in 2 ways, for example, as 3111696 + 2166784 = 1764^2 + 1472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×52784802 = 55724702220800, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32911 + ... + 33070.

Almost surely, 25278480 is an apocalyptic number.

It is an amenable number.

5278480 is an abundant number, since it is smaller than the sum of its proper divisors (6994172).

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

5278480 is a wasteful number, since it uses less digits than its factorization.

5278480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65994 (or 65988 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 5278480 is about 2297.4942872617. The cubic root of 5278480 is about 174.1150426070.

It can be divided in two parts, 5 and 278480, that multiplied together give a square (1392400 = 11802).

The spelling of 5278480 in words is "five million, two hundred seventy-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 65981 131962 263924 329905 527848 659810 1055696 1319620 2639240 5278480