Base | Representation |
---|---|
bin | 110110101110… |
… | …1011100010111 |
3 | 1222222211011200 |
4 | 1231131130113 |
5 | 24321204140 |
6 | 2503003543 |
7 | 465616560 |
oct | 155353427 |
9 | 58884150 |
10 | 28694295 |
11 | 152194a3 |
12 | 97395b3 |
13 | 5c38896 |
14 | 3b4d167 |
15 | 27bc030 |
hex | 1b5d717 |
28694295 has 48 divisors (see below), whose sum is σ = 57687552. Its totient is φ = 12922560.
The previous prime is 28694273. The next prime is 28694333. The reversal of 28694295 is 59249682.
It is not a de Polignac number, because 28694295 - 26 = 28694231 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 28694295.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21724 + ... + 23006.
It is an arithmetic number, because the mean of its divisors is an integer number (1201824).
Almost surely, 228694295 is an apocalyptic number.
28694295 is an abundant number, since it is smaller than the sum of its proper divisors (28993257).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28694295 is a wasteful number, since it uses less digits than its factorization.
28694295 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1372 (or 1369 counting only the distinct ones).
The product of its digits is 311040, while the sum is 45.
The square root of 28694295 is about 5356.7056107275. The cubic root of 28694295 is about 306.1483005365.
The spelling of 28694295 in words is "twenty-eight million, six hundred ninety-four thousand, two hundred ninety-five".
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