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2628885 = 35725037
BaseRepresentation
bin1010000001110100010101
311221120011010
422001310111
51133111020
6132202433
731226250
oct12016425
94846133
102628885
111536136
12a69419
1371076c
144c6097
1536dde0
hex281d15

2628885 has 16 divisors (see below), whose sum is σ = 4807296. Its totient is φ = 1201728.

The previous prime is 2628839. The next prime is 2628889. The reversal of 2628885 is 5888262.

It is not a de Polignac number, because 2628885 - 211 = 2626837 is a prime.

It is a super-2 number, since 2×26288852 = 13822072686450, which contains 22 as substring.

It is a d-powerful number, because it can be written as 218 + 63 + 221 + 8 + 84 + 86 + 55 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12414 + ... + 12623.

It is an arithmetic number, because the mean of its divisors is an integer number (300456).

22628885 is an apocalyptic number.

It is an amenable number.

2628885 is a deficient number, since it is larger than the sum of its proper divisors (2178411).

2628885 is a wasteful number, since it uses less digits than its factorization.

2628885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25052.

The product of its digits is 61440, while the sum is 39.

The square root of 2628885 is about 1621.3836683524. The cubic root of 2628885 is about 138.0142287366.

The spelling of 2628885 in words is "two million, six hundred twenty-eight thousand, eight hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 105 25037 75111 125185 175259 375555 525777 876295 2628885