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2872986 = 23478831
BaseRepresentation
bin1010111101011010011010
312101221222220
422331122122
51213413421
6141324510
733264024
oct12753232
95357886
102872986
111692576
12b66736
137978bc
1454b014
153bb3c6
hex2bd69a

2872986 has 8 divisors (see below), whose sum is σ = 5745984. Its totient is φ = 957660.

The previous prime is 2872981. The next prime is 2872997. The reversal of 2872986 is 6892782.

It is a happy number.

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

2872986 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2872981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239410 + ... + 239421.

It is an arithmetic number, because the mean of its divisors is an integer number (718248).

22872986 is an apocalyptic number.

2872986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2872986 is a wasteful number, since it uses less digits than its factorization.

2872986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478836.

The product of its digits is 96768, while the sum is 42.

The square root of 2872986 is about 1694.9884955362. The cubic root of 2872986 is about 142.1601380590.

The spelling of 2872986 in words is "two million, eight hundred seventy-two thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 478831 957662 1436493 2872986