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28859241 = 39619747
BaseRepresentation
bin110111000010…
…1101101101001
32000022012102210
41232011231221
524341443431
62510315333
7500204505
oct156055551
960265383
1028859241
1115321414
1297b8b49
135c95998
143b93305
152800d46
hex1b85b69

28859241 has 4 divisors (see below), whose sum is σ = 38478992. Its totient is φ = 19239492.

The previous prime is 28859239. The next prime is 28859249. The reversal of 28859241 is 14295882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28859241 - 21 = 28859239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28859241.

It is not an unprimeable number, because it can be changed into a prime (28859249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809871 + ... + 4809876.

It is an arithmetic number, because the mean of its divisors is an integer number (9619748).

Almost surely, 228859241 is an apocalyptic number.

It is an amenable number.

28859241 is a deficient number, since it is larger than the sum of its proper divisors (9619751).

28859241 is an equidigital number, since it uses as much as digits as its factorization.

28859241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619750.

The product of its digits is 46080, while the sum is 39.

The square root of 28859241 is about 5372.0797648583. The cubic root of 28859241 is about 306.7338000211.

The spelling of 28859241 in words is "twenty-eight million, eight hundred fifty-nine thousand, two hundred forty-one".

Divisors: 1 3 9619747 28859241