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28282867 = 532232393
BaseRepresentation
bin110101111100…
…0111111110011
31222012220210121
41223320333303
524220022432
62450111111
7462254224
oct153707763
958186717
1028282867
1114a68378
12957b497
135b23532
143a8324b
15273a197
hex1af8ff3

28282867 has 8 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 27613248.

The previous prime is 28282853. The next prime is 28282897. The reversal of 28282867 is 76828282.

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 28282867 - 27 = 28282739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28282817) 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, 10623 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (3619728).

Almost surely, 228282867 is an apocalyptic number.

28282867 is a deficient number, since it is larger than the sum of its proper divisors (674957).

28282867 is a wasteful number, since it uses less digits than its factorization.

28282867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669.

The product of its digits is 172032, while the sum is 43.

The square root of 28282867 is about 5318.1638748726. The cubic root of 28282867 is about 304.6780334398.

The spelling of 28282867 in words is "twenty-eight million, two hundred eighty-two thousand, eight hundred sixty-seven".

Divisors: 1 53 223 2393 11819 126829 533639 28282867