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28848955 = 55769791
BaseRepresentation
bin110111000001…
…1001100111011
32000021200022211
41232003030323
524341131310
62510155551
7500132512
oct156031473
960250284
1028848955
1115314713
1297b2bb7
135c910b5
143b8d679
1527ecc8a
hex1b8333b

28848955 has 4 divisors (see below), whose sum is σ = 34618752. Its totient is φ = 23079160.

The previous prime is 28848947. The next prime is 28848959. The reversal of 28848955 is 55984882.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28848955 - 23 = 28848947 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28848899 and 28848908.

It is not an unprimeable number, because it can be changed into a prime (28848959) 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, 2884891 + ... + 2884900.

It is an arithmetic number, because the mean of its divisors is an integer number (8654688).

Almost surely, 228848955 is an apocalyptic number.

28848955 is a deficient number, since it is larger than the sum of its proper divisors (5769797).

28848955 is an equidigital number, since it uses as much as digits as its factorization.

28848955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769796.

The product of its digits is 921600, while the sum is 49.

The square root of 28848955 is about 5371.1223221967. The cubic root of 28848955 is about 306.6973537082.

The spelling of 28848955 in words is "twenty-eight million, eight hundred forty-eight thousand, nine hundred fifty-five".

Divisors: 1 5 5769791 28848955