Base | Representation |
---|---|
bin | 110110110100… |
… | …1110111101100 |
3 | 2000002101222220 |
4 | 1231221313230 |
5 | 24324321241 |
6 | 2504035340 |
7 | 466221144 |
oct | 155516754 |
9 | 60071886 |
10 | 28745196 |
11 | 15253767 |
12 | 9762b50 |
13 | 5c55abc |
14 | 3b63924 |
15 | 27cc166 |
hex | 1b69dec |
28745196 has 12 divisors (see below), whose sum is σ = 67072152. Its totient is φ = 9581728.
The previous prime is 28745191. The next prime is 28745201. The reversal of 28745196 is 69154782.
It is an interprime number because it is at equal distance from previous prime (28745191) and next prime (28745201).
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (28745191) 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, 1197705 + ... + 1197728.
It is an arithmetic number, because the mean of its divisors is an integer number (5589346).
Almost surely, 228745196 is an apocalyptic number.
It is an amenable number.
28745196 is an abundant number, since it is smaller than the sum of its proper divisors (38326956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28745196 is a wasteful number, since it uses less digits than its factorization.
28745196 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2395440 (or 2395438 counting only the distinct ones).
The product of its digits is 120960, while the sum is 42.
The square root of 28745196 is about 5361.4546533567. The cubic root of 28745196 is about 306.3292197669.
The spelling of 28745196 in words is "twenty-eight million, seven hundred forty-five thousand, one hundred ninety-six".
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