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4228081 = 111329567
BaseRepresentation
bin10000001000001111110001
321221210211121
4100020033301
52040244311
6230342241
750636524
oct20101761
97853747
104228081
112428690
1214ba981
13b50630
147c0bbb
15587b71
hex4083f1

4228081 has 8 divisors (see below), whose sum is σ = 4967424. Its totient is φ = 3547920.

The previous prime is 4228079. The next prime is 4228097. The reversal of 4228081 is 1808224.

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 4228081 - 21 = 4228079 is a prime.

It is a super-2 number, since 2×42280812 = 35753337885122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4228031) 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, 14641 + ... + 14926.

It is an arithmetic number, because the mean of its divisors is an integer number (620928).

Almost surely, 24228081 is an apocalyptic number.

It is an amenable number.

4228081 is a deficient number, since it is larger than the sum of its proper divisors (739343).

4228081 is a wasteful number, since it uses less digits than its factorization.

4228081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29591.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4228081 is about 2056.2298023324. The cubic root of 4228081 is about 161.7016430978.

The spelling of 4228081 in words is "four million, two hundred twenty-eight thousand, eighty-one".

Divisors: 1 11 13 143 29567 325237 384371 4228081