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28876379 = 724117117
BaseRepresentation
bin110111000100…
…1111001011011
32000100001221112
41232021321123
524343021004
62510530535
7500305460
oct156117133
960301845
1028876379
1115333284
129806a4b
135ca071c
143b99667
152805e6e
hex1b89e5b

28876379 has 8 divisors (see below), whose sum is σ = 33140448. Its totient is φ = 24647040.

The previous prime is 28876357. The next prime is 28876381. The reversal of 28876379 is 97367882.

It is a happy number.

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-28876379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28870379) 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, 6872 + ... + 10245.

It is an arithmetic number, because the mean of its divisors is an integer number (4142556).

Almost surely, 228876379 is an apocalyptic number.

28876379 is a deficient number, since it is larger than the sum of its proper divisors (4264069).

28876379 is a wasteful number, since it uses less digits than its factorization.

28876379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17365.

The product of its digits is 1016064, while the sum is 50.

The square root of 28876379 is about 5373.6746272918. The cubic root of 28876379 is about 306.7945057482.

It can be divided in two parts, 288 and 76379, that added together give a palindrome (76667).

The spelling of 28876379 in words is "twenty-eight million, eight hundred seventy-six thousand, three hundred seventy-nine".

Divisors: 1 7 241 1687 17117 119819 4125197 28876379