Search a number
-
+
28520676174 = 2325367187387
BaseRepresentation
bin11010100011111101…
…101111101101001110
32201121122200110120210
4122203331233231032
5431402243114144
621034025023250
72026524514254
oct324375575516
981548613523
1028520676174
11111061a6161
12563b624b26
1328c6a61c63
141547ba85d4
15b1dd15ab9
hex6a3f6fb4e

28520676174 has 16 divisors (see below), whose sum is σ = 57043905408. Its totient is φ = 9506466552.

The previous prime is 28520676109. The next prime is 28520676181. The reversal of 28520676174 is 47167602582.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58509 + ... + 245895.

It is an arithmetic number, because the mean of its divisors is an integer number (3565244088).

Almost surely, 228520676174 is an apocalyptic number.

28520676174 is an abundant number, since it is smaller than the sum of its proper divisors (28523229234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28520676174 is a wasteful number, since it uses less digits than its factorization.

28520676174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212759.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28520676174 in words is "twenty-eight billion, five hundred twenty million, six hundred seventy-six thousand, one hundred seventy-four".

Divisors: 1 2 3 6 25367 50734 76101 152202 187387 374774 562161 1124322 4753446029 9506892058 14260338087 28520676174