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28850315 = 513443851
BaseRepresentation
bin110111000001…
…1100010001011
32000021202012012
41232003202023
524341202230
62510210135
7500136464
oct156034213
960252165
1028850315
111531573a
1297b394b
135c918c0
143b8dd6b
1527ed395
hex1b8388b

28850315 has 8 divisors (see below), whose sum is σ = 37283568. Its totient is φ = 21304800.

The previous prime is 28850287. The next prime is 28850321. The reversal of 28850315 is 51305882.

It is a happy number.

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

It is not a de Polignac number, because 28850315 - 26 = 28850251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221861 + ... + 221990.

It is an arithmetic number, because the mean of its divisors is an integer number (4660446).

Almost surely, 228850315 is an apocalyptic number.

28850315 is a deficient number, since it is larger than the sum of its proper divisors (8433253).

28850315 is a wasteful number, since it uses less digits than its factorization.

28850315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443869.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 28850315 is about 5371.2489236676. The cubic root of 28850315 is about 306.7021730838.

The spelling of 28850315 in words is "twenty-eight million, eight hundred fifty thousand, three hundred fifteen".

Divisors: 1 5 13 65 443851 2219255 5770063 28850315