Base | Representation |
---|---|
bin | 110110110100… |
… | …1110010101100 |
3 | 2000002101120001 |
4 | 1231221302230 |
5 | 24324314001 |
6 | 2504034044 |
7 | 466220206 |
oct | 155516254 |
9 | 60071501 |
10 | 28744876 |
11 | 152534a6 |
12 | 9762924 |
13 | 5c55904 |
14 | 3b63776 |
15 | 27cc001 |
hex | 1b69cac |
28744876 has 24 divisors (see below), whose sum is σ = 51369920. Its totient is φ = 14070672.
The previous prime is 28744873. The next prime is 28744879. The reversal of 28744876 is 67844782.
It is an interprime number because it is at equal distance from previous prime (28744873) and next prime (28744879).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28744873) 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, 75655 + ... + 76033.
Almost surely, 228744876 is an apocalyptic number.
It is an amenable number.
28744876 is a deficient number, since it is larger than the sum of its proper divisors (22625044).
28744876 is a wasteful number, since it uses less digits than its factorization.
28744876 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 733 (or 731 counting only the distinct ones).
The product of its digits is 602112, while the sum is 46.
The square root of 28744876 is about 5361.4248106264. The cubic root of 28744876 is about 306.3280830470.
It can be divided in two parts, 2874 and 4876, that added together give a triangular number (7750 = T124).
The spelling of 28744876 in words is "twenty-eight million, seven hundred forty-four thousand, eight hundred seventy-six".
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