Search a number
-
+
28269627 = 356916561
BaseRepresentation
bin110101111010…
…1110000111011
31222012020122020
41223311300323
524214112002
62445525523
7462200511
oct153656073
958166566
1028269627
1114a59431
1295738a3
135b1a4b9
143a7c4b1
1527362bc
hex1af5c3b

28269627 has 8 divisors (see below), whose sum is σ = 37761360. Its totient is φ = 18812160.

The previous prime is 28269601. The next prime is 28269629. The reversal of 28269627 is 72696282.

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

It is not a de Polignac number, because 28269627 - 27 = 28269499 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28269629) 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, 6574 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (4720170).

Almost surely, 228269627 is an apocalyptic number.

28269627 is a deficient number, since it is larger than the sum of its proper divisors (9491733).

28269627 is a wasteful number, since it uses less digits than its factorization.

28269627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17133.

The product of its digits is 145152, while the sum is 42.

The square root of 28269627 is about 5316.9189386335. The cubic root of 28269627 is about 304.6304832534.

The spelling of 28269627 in words is "twenty-eight million, two hundred sixty-nine thousand, six hundred twenty-seven".

Divisors: 1 3 569 1707 16561 49683 9423209 28269627