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28768802 = 2127191593
BaseRepresentation
bin110110110111…
…1101000100010
32000010121101012
41231233220202
524331100202
62504340522
7466350026
oct155575042
960117335
1028768802
111526a477
129774742
135c6377a
143b6c386
1527d4152
hex1b6fa22

28768802 has 16 divisors (see below), whose sum is σ = 43794432. Its totient is φ = 14172480.

The previous prime is 28768801. The next prime is 28768823. The reversal of 28768802 is 20886782.

It is a self number, because there is not a number n which added to its sum of digits gives 28768802.

It is not an unprimeable number, because it can be changed into a prime (28768801) 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, 48218 + ... + 48810.

It is an arithmetic number, because the mean of its divisors is an integer number (2737152).

Almost surely, 228768802 is an apocalyptic number.

28768802 is a deficient number, since it is larger than the sum of its proper divisors (15025630).

28768802 is a wasteful number, since it uses less digits than its factorization.

28768802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 28768802 is about 5363.6556563598. The cubic root of 28768802 is about 306.4130509226.

The spelling of 28768802 in words is "twenty-eight million, seven hundred sixty-eight thousand, eight hundred two".

Divisors: 1 2 127 191 254 382 593 1186 24257 48514 75311 113263 150622 226526 14384401 28768802