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2224981 = 11832437
BaseRepresentation
bin1000011111001101010101
311012001002201
420133031111
51032144411
6115404501
724624553
oct10371525
94161081
102224981
11128a730
128b3731
135cb975
1441cbd3
152de3c1
hex21f355

2224981 has 8 divisors (see below), whose sum is σ = 2457504. Its totient is φ = 1997520.

The previous prime is 2224979. The next prime is 2224987. The reversal of 2224981 is 1894222.

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 2224981 - 21 = 2224979 is a prime.

It is a super-2 number, since 2×22249812 = 9901080900722, which contains 22 as substring.

It is a Duffinian number.

2224981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (307188).

22224981 is an apocalyptic number.

It is an amenable number.

2224981 is a deficient number, since it is larger than the sum of its proper divisors (232523).

2224981 is a wasteful number, since it uses less digits than its factorization.

2224981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531.

The product of its digits is 2304, while the sum is 28.

The square root of 2224981 is about 1491.6370201896. The cubic root of 2224981 is about 130.5495669570.

The spelling of 2224981 in words is "two million, two hundred twenty-four thousand, nine hundred eighty-one".

Divisors: 1 11 83 913 2437 26807 202271 2224981