Base | Representation |
---|---|
bin | 110101101001… |
… | …1000001111000 |
3 | 1221221000110210 |
4 | 1223103001320 |
5 | 24200033402 |
6 | 2442511120 |
7 | 461035641 |
oct | 153230170 |
9 | 57830423 |
10 | 28127352 |
11 | 14971550 |
12 | 95054a0 |
13 | 5a9a806 |
14 | 3a426c8 |
15 | 270906c |
hex | 1ad3078 |
28127352 has 32 divisors (see below), whose sum is σ = 76711680. Its totient is φ = 8523360.
The previous prime is 28127327. The next prime is 28127357. The reversal of 28127352 is 25372182.
It is a super-2 number, since 2×281273522 = 1582295861063808, which contains 22 as substring.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28127357) 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, 53008 + ... + 53535.
It is an arithmetic number, because the mean of its divisors is an integer number (2397240).
Almost surely, 228127352 is an apocalyptic number.
28127352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
28127352 is an abundant number, since it is smaller than the sum of its proper divisors (48584328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28127352 is a wasteful number, since it uses less digits than its factorization.
28127352 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106563 (or 106559 counting only the distinct ones).
The product of its digits is 6720, while the sum is 30.
The square root of 28127352 is about 5303.5226029499. The cubic root of 28127352 is about 304.1185767804.
The spelling of 28127352 in words is "twenty-eight million, one hundred twenty-seven thousand, three hundred fifty-two".
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