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2226487 = 19111657
BaseRepresentation
bin1000011111100100110111
311012010011111
420133210313
51032221422
6115415451
724632134
oct10374467
94163144
102226487
11129087a
128b4587
135cc563
1441d58b
152dea77
hex21f937

2226487 has 4 divisors (see below), whose sum is σ = 2238336. Its totient is φ = 2214640.

The previous prime is 2226479. The next prime is 2226493. The reversal of 2226487 is 7846222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2226487 - 23 = 2226479 is a prime.

It is a super-2 number, since 2×22264872 = 9914488722338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 28 + 216 + 221 + 66 + 42 + 82 + 75 .

It is a Duffinian number.

2226487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226407) 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, 5638 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (559584).

22226487 is an apocalyptic number.

2226487 is a deficient number, since it is larger than the sum of its proper divisors (11849).

2226487 is a wasteful number, since it uses less digits than its factorization.

2226487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848.

The product of its digits is 10752, while the sum is 31.

The square root of 2226487 is about 1492.1417492986. The cubic root of 2226487 is about 130.5790148947.

The spelling of 2226487 in words is "two million, two hundred twenty-six thousand, four hundred eighty-seven".

Divisors: 1 191 11657 2226487