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2224143 = 32421587
BaseRepresentation
bin1000011111000000001111
311011222221200
420133000033
51032133033
6115400543
724622245
oct10370017
94158850
102224143
11128a039
128b3153
135cb47c
1441c795
152de013
hex21f00f

2224143 has 12 divisors (see below), whose sum is σ = 3225768. Its totient is φ = 1476720.

The previous prime is 2224141. The next prime is 2224147. The reversal of 2224143 is 3414222.

It is not a de Polignac number, because 2224143 - 21 = 2224141 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3496 + ... + 4082.

It is an arithmetic number, because the mean of its divisors is an integer number (268814).

22224143 is an apocalyptic number.

2224143 is a deficient number, since it is larger than the sum of its proper divisors (1001625).

2224143 is a wasteful number, since it uses less digits than its factorization.

2224143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1011 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2224143 is about 1491.3560942981. The cubic root of 2224143 is about 130.5331751654.

Adding to 2224143 its reverse (3414222), we get a palindrome (5638365).

The spelling of 2224143 in words is "two million, two hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 9 421 587 1263 1761 3789 5283 247127 741381 2224143