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2008520 = 235149337
BaseRepresentation
bin111101010010111001000
310210001011122
413222113020
51003233040
6111014412
723033513
oct7522710
93701148
102008520
111152038
1280a408
13554297
143a3d7a
1529a1b5
hex1ea5c8

2008520 has 32 divisors (see below), whose sum is σ = 4563000. Its totient is φ = 795648.

The previous prime is 2008493. The next prime is 2008529. The reversal of 2008520 is 258002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 972196 + 1036324 = 986^2 + 1018^2 .

It is not an unprimeable number, because it can be changed into a prime (2008529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5792 + ... + 6128.

22008520 is an apocalyptic number.

2008520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2008520 is an abundant number, since it is smaller than the sum of its proper divisors (2554480).

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

2008520 is a wasteful number, since it uses less digits than its factorization.

2008520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2008520 is about 1417.2226360032. Note that the first 3 decimals coincide. The cubic root of 2008520 is about 126.1707603276.

The spelling of 2008520 in words is "two million, eight thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 149 298 337 596 674 745 1192 1348 1490 1685 2696 2980 3370 5960 6740 13480 50213 100426 200852 251065 401704 502130 1004260 2008520