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28790848 = 262319559
BaseRepresentation
bin110110111010…
…1000001000000
32000011201121201
41231311001000
524332301343
62505030544
7466501222
oct155650100
960151551
1028790848
1115284a99
129785454
135c70808
143b76412
1527da94d
hex1b75040

28790848 has 28 divisors (see below), whose sum is σ = 59618880. Its totient is φ = 13768832.

The previous prime is 28790807. The next prime is 28790849. The reversal of 28790848 is 84809782.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 28790798 and 28790807.

It is not an unprimeable number, because it can be changed into a prime (28790849) 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, 8308 + ... + 11251.

Almost surely, 228790848 is an apocalyptic number.

It is an amenable number.

28790848 is an abundant number, since it is smaller than the sum of its proper divisors (30828032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28790848 is a wasteful number, since it uses less digits than its factorization.

28790848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19594 (or 19584 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 28790848 is about 5365.7103909920. The cubic root of 28790848 is about 306.4913007031.

The spelling of 28790848 in words is "twenty-eight million, seven hundred ninety thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 736 1472 19559 39118 78236 156472 312944 449857 625888 899714 1251776 1799428 3598856 7197712 14395424 28790848