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28624603172 = 22112328285181
BaseRepresentation
bin11010101010001010…
…001100100000100100
32201212220020111121212
4122222022030200210
5432110344300142
621052220330552
72032226053364
oct325212144044
981786214555
1028624603172
111115992a040
12566a3a3a58
13291244c019
1415578dc9a4
15b27ee3d82
hex6aa28c824

28624603172 has 24 divisors (see below), whose sum is σ = 57022926912. Its totient is φ = 12445479200.

The previous prime is 28624603169. The next prime is 28624603181. The reversal of 28624603172 is 27130642682.

It is a super-3 number, since 3×286246031723 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14141579 + ... + 14143602.

It is an arithmetic number, because the mean of its divisors is an integer number (2375955288).

Almost surely, 228624603172 is an apocalyptic number.

28624603172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28624603172 is a deficient number, since it is larger than the sum of its proper divisors (28398323740).

28624603172 is a wasteful number, since it uses less digits than its factorization.

28624603172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28285219 (or 28285217 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 28624603172 in words is "twenty-eight billion, six hundred twenty-four million, six hundred three thousand, one hundred seventy-two".

Divisors: 1 2 4 11 22 23 44 46 92 253 506 1012 28285181 56570362 113140724 311136991 622273982 650559163 1244547964 1301118326 2602236652 7156150793 14312301586 28624603172