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28201153 = 412692557
BaseRepresentation
bin110101110010…
…1000011000001
31222001202201011
41223211003001
524204414103
62444240521
7461464051
oct153450301
958052634
1028201153
1114a11a42
129540141
135ac5296
143a61561
152720d6d
hex1ae50c1

28201153 has 8 divisors (see below), whose sum is σ = 29007720. Its totient is φ = 27400320.

The previous prime is 28201087. The next prime is 28201189. The reversal of 28201153 is 35110282.

It can be written as a sum of positive squares in 4 ways, for example, as 984064 + 27217089 = 992^2 + 5217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28201153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28201553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9751 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (3625965).

Almost surely, 228201153 is an apocalyptic number.

It is an amenable number.

28201153 is a deficient number, since it is larger than the sum of its proper divisors (806567).

28201153 is a wasteful number, since it uses less digits than its factorization.

28201153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 28201153 is about 5310.4757790616. The cubic root of 28201153 is about 304.3843282309.

The spelling of 28201153 in words is "twenty-eight million, two hundred one thousand, one hundred fifty-three".

Divisors: 1 41 269 2557 11029 104837 687833 28201153