Search a number
-
+
28333610872 = 237505957337
BaseRepresentation
bin11010011000110100…
…001001011101111000
32201010121200120020021
4122120310021131320
5431011401021442
621003303340224
72022063501340
oct323064113570
981117616207
1028333610872
111101a648236
1255a8a51674
132897086228
14152add1d20
15b0c6b3e67
hex698d09778

28333610872 has 16 divisors (see below), whose sum is σ = 60714880560. Its totient is φ = 12142976064.

The previous prime is 28333610867. The next prime is 28333610897. The reversal of 28333610872 is 27801633382.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 252978613 + ... + 252978724.

It is an arithmetic number, because the mean of its divisors is an integer number (3794680035).

Almost surely, 228333610872 is an apocalyptic number.

It is an amenable number.

28333610872 is an abundant number, since it is smaller than the sum of its proper divisors (32381269688).

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

28333610872 is a wasteful number, since it uses less digits than its factorization.

28333610872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505957350 (or 505957346 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 28333610872 in words is "twenty-eight billion, three hundred thirty-three million, six hundred ten thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 505957337 1011914674 2023829348 3541701359 4047658696 7083402718 14166805436 28333610872