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2228401 = 72313841
BaseRepresentation
bin1000100000000010110001
311012012210101
420200002301
51032302101
6115432401
724640540
oct10400261
94165711
102228401
11129225a
128b5701
136003a6
14420157
152e0401
hex2200b1

2228401 has 8 divisors (see below), whose sum is σ = 2657664. Its totient is φ = 1826880.

The previous prime is 2228393. The next prime is 2228407. The reversal of 2228401 is 1048222.

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 2228401 - 23 = 2228393 is a prime.

It is a d-powerful number, because it can be written as 25 + 27 + 217 + 87 + 42 + 0 + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228407) 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, 6760 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (332208).

22228401 is an apocalyptic number.

It is an amenable number.

2228401 is a deficient number, since it is larger than the sum of its proper divisors (429263).

2228401 is a wasteful number, since it uses less digits than its factorization.

2228401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13871.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2228401 is about 1492.7829714999. The cubic root of 2228401 is about 130.6164216034.

The spelling of 2228401 in words is "two million, two hundred twenty-eight thousand, four hundred one".

Divisors: 1 7 23 161 13841 96887 318343 2228401