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2040560 = 245231109
BaseRepresentation
bin111110010001011110000
310211200010022
413302023300
51010244220
6111423012
723226104
oct7621360
93750108
102040560
111174115
12824a68
13565a42
143b1904
152a4925
hex1f22f0

2040560 has 40 divisors (see below), whose sum is σ = 4955040. Its totient is φ = 780032.

The previous prime is 2040559. The next prime is 2040593. The reversal of 2040560 is 650402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20405602 = 8327770227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1286 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (123876).

22040560 is an apocalyptic number.

2040560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2040560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2477520).

2040560 is an abundant number, since it is smaller than the sum of its proper divisors (2914480).

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

2040560 is a wasteful number, since it uses less digits than its factorization.

2040560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2040560 is about 1428.4817114685. The cubic root of 2040560 is about 126.8381180865.

Adding to 2040560 its reverse (650402), we get a palindrome (2690962).

The spelling of 2040560 in words is "two million, forty thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1109 1840 2218 4436 5545 8872 11090 17744 22180 25507 44360 51014 88720 102028 127535 204056 255070 408112 510140 1020280 2040560