[go: up one dir, main page]

Search a number
-
+
28834033 = 291496673
BaseRepresentation
bin110110111111…
…1100011110001
32000020220212011
41231333203301
524340142113
62510002521
7500041144
oct155774361
960226764
1028834033
1115304488
1297a6441
135c87377
143b8805b
1527e863d
hex1b7f8f1

28834033 has 8 divisors (see below), whose sum is σ = 30033000. Its totient is φ = 27648768.

The previous prime is 28834009. The next prime is 28834073. The reversal of 28834033 is 33043882.

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 28483569 = 592^2 + 5337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28834033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28833986 and 28834004.

It is not an unprimeable number, because it can be changed into a prime (28834073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 7657.

It is an arithmetic number, because the mean of its divisors is an integer number (3754125).

Almost surely, 228834033 is an apocalyptic number.

It is an amenable number.

28834033 is a deficient number, since it is larger than the sum of its proper divisors (1198967).

28834033 is a wasteful number, since it uses less digits than its factorization.

28834033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 28834033 is about 5369.7330473684. The cubic root of 28834033 is about 306.6444652852.

The spelling of 28834033 in words is "twenty-eight million, eight hundred thirty-four thousand, thirty-three".

Divisors: 1 29 149 4321 6673 193517 994277 28834033