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2868985 = 5781971
BaseRepresentation
bin1010111100011011111001
312101202111201
422330123321
51213301420
6141254201
733246250
oct12743371
95352451
102868985
11168a569
12b64361
13795b32
14549797
153ba10a
hex2bc6f9

2868985 has 8 divisors (see below), whose sum is σ = 3934656. Its totient is φ = 1967280.

The previous prime is 2868977. The next prime is 2869001. The reversal of 2868985 is 5898682.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2868985 - 23 = 2868977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40951 + ... + 41020.

It is an arithmetic number, because the mean of its divisors is an integer number (491832).

22868985 is an apocalyptic number.

It is an amenable number.

2868985 is a deficient number, since it is larger than the sum of its proper divisors (1065671).

2868985 is an equidigital number, since it uses as much as digits as its factorization.

2868985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81983.

The product of its digits is 276480, while the sum is 46.

The square root of 2868985 is about 1693.8078403408. The cubic root of 2868985 is about 142.0941153506.

It can be divided in two parts, 286898 and 5, that added together give a triangular number (286903 = T757).

The spelling of 2868985 in words is "two million, eight hundred sixty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 81971 409855 573797 2868985