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2680556 = 22670139
BaseRepresentation
bin1010001110011011101100
312001012000212
422032123230
51141234211
6133241552
731533014
oct12163354
95035025
102680556
111570a3a
12a932b8
1372b138
144dac44
1537e38b
hex28e6ec

2680556 has 6 divisors (see below), whose sum is σ = 4690980. Its totient is φ = 1340276.

The previous prime is 2680553. The next prime is 2680567. The reversal of 2680556 is 6550862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2680553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335066 + ... + 335073.

It is an arithmetic number, because the mean of its divisors is an integer number (781830).

22680556 is an apocalyptic number.

It is an amenable number.

2680556 is a deficient number, since it is larger than the sum of its proper divisors (2010424).

2680556 is a wasteful number, since it uses less digits than its factorization.

2680556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670143 (or 670141 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2680556 is about 1637.2403610955. The cubic root of 2680556 is about 138.9125962257.

The spelling of 2680556 in words is "two million, six hundred eighty thousand, five hundred fifty-six".

Divisors: 1 2 4 670139 1340278 2680556