Base | Representation |
---|---|
bin | 110110110000… |
… | …1110001110110 |
3 | 2000000201112102 |
4 | 1231201301312 |
5 | 24322241204 |
6 | 2503222102 |
7 | 466022420 |
oct | 155416166 |
9 | 60021472 |
10 | 28712054 |
11 | 15230878 |
12 | 9747932 |
13 | 5c439a7 |
14 | 3b55810 |
15 | 27c241e |
hex | 1b61c76 |
28712054 has 16 divisors (see below), whose sum is σ = 50422176. Its totient is φ = 12004800.
The previous prime is 28712053. The next prime is 28712069. The reversal of 28712054 is 45021782.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28712051) 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, 24437 + ... + 25584.
It is an arithmetic number, because the mean of its divisors is an integer number (3151386).
Almost surely, 228712054 is an apocalyptic number.
28712054 is a deficient number, since it is larger than the sum of its proper divisors (21710122).
28712054 is a wasteful number, since it uses less digits than its factorization.
28712054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50071.
The product of its (nonzero) digits is 4480, while the sum is 29.
The square root of 28712054 is about 5358.3629962891. The cubic root of 28712054 is about 306.2114462643.
The spelling of 28712054 in words is "twenty-eight million, seven hundred twelve thousand, fifty-four".
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