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2287801 = 109139151
BaseRepresentation
bin1000101110100010111001
311022020021101
420232202321
51041202201
6121011401
725305655
oct10564271
94266241
102287801
11132294a
12923b61
13621439
14437a65
15302d01
hex22e8b9

2287801 has 8 divisors (see below), whose sum is σ = 2340800. Its totient is φ = 2235600.

The previous prime is 2287777. The next prime is 2287807. The reversal of 2287801 is 1087822.

2287801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2287801 - 29 = 2287289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2287801.

It is not an unprimeable number, because it can be changed into a prime (2287807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15076 + ... + 15226.

It is an arithmetic number, because the mean of its divisors is an integer number (292600).

22287801 is an apocalyptic number.

It is an amenable number.

2287801 is a deficient number, since it is larger than the sum of its proper divisors (52999).

2287801 is a wasteful number, since it uses less digits than its factorization.

2287801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2287801 is about 1512.5478504828. The cubic root of 2287801 is about 131.7668251061.

The spelling of 2287801 in words is "two million, two hundred eighty-seven thousand, eight hundred one".

Divisors: 1 109 139 151 15151 16459 20989 2287801