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28860203 = 172696311
BaseRepresentation
bin110111000010…
…1111100101011
32000022020202102
41232011330223
524342011303
62510324015
7500210351
oct156057453
960266672
1028860203
1115322109
1297b960b
135c96258
143b937d1
152801288
hex1b85f2b

28860203 has 8 divisors (see below), whose sum is σ = 30676320. Its totient is φ = 27057280.

The previous prime is 28860197. The next prime is 28860233. The reversal of 28860203 is 30206882.

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-28860203 is a prime.

It is a super-2 number, since 2×288602032 = 1665822634402418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28860233) 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, 1418 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (3834540).

Almost surely, 228860203 is an apocalyptic number.

28860203 is a deficient number, since it is larger than the sum of its proper divisors (1816117).

28860203 is a wasteful number, since it uses less digits than its factorization.

28860203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 28860203 is about 5372.1693011297. The cubic root of 28860203 is about 306.7372082262.

The spelling of 28860203 in words is "twenty-eight million, eight hundred sixty thousand, two hundred three".

Divisors: 1 17 269 4573 6311 107287 1697659 28860203