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28876017 = 323418493
BaseRepresentation
bin110111000100…
…1110011110001
32000100001110010
41232021303301
524343013032
62510525133
7500304432
oct156116361
960301403
1028876017
1115332a85
1298067a9
135ca0501
143b99489
152805ccc
hex1b89cf1

28876017 has 8 divisors (see below), whose sum is σ = 40175424. Its totient is φ = 18413648.

The previous prime is 28876009. The next prime is 28876019. The reversal of 28876017 is 71067882.

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 28876017 - 23 = 28876009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28876019) 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, 209178 + ... + 209315.

It is an arithmetic number, because the mean of its divisors is an integer number (5021928).

Almost surely, 228876017 is an apocalyptic number.

It is an amenable number.

28876017 is a deficient number, since it is larger than the sum of its proper divisors (11299407).

28876017 is a wasteful number, since it uses less digits than its factorization.

28876017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418519.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 28876017 is about 5373.6409444621. The cubic root of 28876017 is about 306.7932237307.

The spelling of 28876017 in words is "twenty-eight million, eight hundred seventy-six thousand, seventeen".

Divisors: 1 3 23 69 418493 1255479 9625339 28876017