Search a number
-
+
28113070 = 2517612711
BaseRepresentation
bin110101100111…
…1100010101110
31221220021212211
41223033202232
524144104240
62442321034
7460646206
oct153174256
957807784
1028113070
1114961847
1294b917a
135a9416b
143a3b406
152704bea
hex1acf8ae

28113070 has 32 divisors (see below), whose sum is σ = 54478656. Its totient is φ = 10406400.

The previous prime is 28113037. The next prime is 28113077. The reversal of 28113070 is 7031182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28113077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9015 + ... + 11725.

It is an arithmetic number, because the mean of its divisors is an integer number (1702458).

Almost surely, 228113070 is an apocalyptic number.

28113070 is a deficient number, since it is larger than the sum of its proper divisors (26365586).

28113070 is a wasteful number, since it uses less digits than its factorization.

28113070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 28113070 is about 5302.1759684115. The cubic root of 28113070 is about 304.0670947821.

The spelling of 28113070 in words is "twenty-eight million, one hundred thirteen thousand, seventy".

Divisors: 1 2 5 10 17 34 61 85 122 170 305 610 1037 2074 2711 5185 5422 10370 13555 27110 46087 92174 165371 230435 330742 460870 826855 1653710 2811307 5622614 14056535 28113070