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28010201 = 299191051
BaseRepresentation
bin110101011011…
…0011011011001
31221201001202212
41222312123121
524132311301
62440204505
7460040252
oct152663331
957631685
1028010201
11148a152a
129469735
135a593ab
143a11b29
1526d44bb
hex1ab66d9

28010201 has 8 divisors (see below), whose sum is σ = 29035200. Its totient is φ = 26989200.

The previous prime is 28010183. The next prime is 28010207. The reversal of 28010201 is 10201082.

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 28010201 - 26 = 28010137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28010207) 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, 26126 + ... + 27176.

It is an arithmetic number, because the mean of its divisors is an integer number (3629400).

Almost surely, 228010201 is an apocalyptic number.

It is an amenable number.

28010201 is a deficient number, since it is larger than the sum of its proper divisors (1024999).

28010201 is a wasteful number, since it uses less digits than its factorization.

28010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 28010201 is about 5292.4664382498. The cubic root of 28010201 is about 303.6957691912.

Adding to 28010201 its reverse (10201082), we get a palindrome (38211283).

The spelling of 28010201 in words is "twenty-eight million, ten thousand, two hundred one".

Divisors: 1 29 919 1051 26651 30479 965869 28010201