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2855081 = 10726683
BaseRepresentation
bin1010111001000010101001
312101001102202
422321002221
51212330311
6141105545
733160565
oct12710251
95331382
102855081
111680079
12b582b5
1378c6c8
145446a5
153b5e3b
hex2b90a9

2855081 has 4 divisors (see below), whose sum is σ = 2881872. Its totient is φ = 2828292.

The previous prime is 2855077. The next prime is 2855089. The reversal of 2855081 is 1805582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2855081 - 22 = 2855077 is a prime.

It is a super-2 number, since 2×28550812 = 16302975033122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2855089) 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, 13235 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (720468).

22855081 is an apocalyptic number.

It is an amenable number.

2855081 is a deficient number, since it is larger than the sum of its proper divisors (26791).

2855081 is a wasteful number, since it uses less digits than its factorization.

2855081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 2855081 is about 1689.6984938148. The cubic root of 2855081 is about 141.8641993369.

The spelling of 2855081 in words is "two million, eight hundred fifty-five thousand, eighty-one".

Divisors: 1 107 26683 2855081