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2553860 = 225149857
BaseRepresentation
bin1001101111100000000100
311210202020102
421233200010
51123210420
6130423232
730464441
oct11574004
94722212
102553860
111494831
12a31b18
136b557a
144a69c8
15356a75
hex26f804

2553860 has 24 divisors (see below), whose sum is σ = 5405400. Its totient is φ = 1013504.

The previous prime is 2553857. The next prime is 2553869. The reversal of 2553860 is 683552.

It can be written as a sum of positive squares in 4 ways, for example, as 315844 + 2238016 = 562^2 + 1496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2552 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (225225).

22553860 is an apocalyptic number.

2553860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2553860 is an abundant number, since it is smaller than the sum of its proper divisors (2851540).

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

2553860 is a wasteful number, since it uses less digits than its factorization.

2553860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2553860 is about 1598.0800981177. The cubic root of 2553860 is about 136.6886209690.

The spelling of 2553860 in words is "two million, five hundred fifty-three thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 149 298 596 745 857 1490 1714 2980 3428 4285 8570 17140 127693 255386 510772 638465 1276930 2553860