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2257180 = 225112859
BaseRepresentation
bin1000100111000100011100
311020200021021
420213010130
51034212210
6120213524
725120462
oct10470434
94220237
102257180
111301942
1290a2a4
13610513
1442a832
152e8bda
hex22711c

2257180 has 12 divisors (see below), whose sum is σ = 4740120. Its totient is φ = 902864.

The previous prime is 2257169. The next prime is 2257187. The reversal of 2257180 is 817522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56410 + ... + 56449.

It is an arithmetic number, because the mean of its divisors is an integer number (395010).

22257180 is an apocalyptic number.

2257180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257180 is an abundant number, since it is smaller than the sum of its proper divisors (2482940).

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

2257180 is a wasteful number, since it uses less digits than its factorization.

2257180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112868 (or 112866 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2257180 is about 1502.3914270256. The cubic root of 2257180 is about 131.1763063252.

The spelling of 2257180 in words is "two million, two hundred fifty-seven thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 112859 225718 451436 564295 1128590 2257180