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2672780 = 2251112149
BaseRepresentation
bin1010001100100010001100
312000210100212
422030202030
51141012110
6133141552
731501235
oct12144214
95023325
102672780
111566110
12a8a8b8
13727736
144d808c
1537be05
hex28c88c

2672780 has 24 divisors (see below), whose sum is σ = 6123600. Its totient is φ = 971840.

The previous prime is 2672779. The next prime is 2672783. The reversal of 2672780 is 872762.

It is not an unprimeable number, because it can be changed into a prime (2672783) 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, 5855 + ... + 6294.

It is an arithmetic number, because the mean of its divisors is an integer number (255150).

22672780 is an apocalyptic number.

2672780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2672780 is an abundant number, since it is smaller than the sum of its proper divisors (3450820).

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

2672780 is a wasteful number, since it uses less digits than its factorization.

2672780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12169 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 2672780 is about 1634.8639087092. The cubic root of 2672780 is about 138.7781427101.

The spelling of 2672780 in words is "two million, six hundred seventy-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 12149 24298 48596 60745 121490 133639 242980 267278 534556 668195 1336390 2672780