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28841327420 = 22512433115987
BaseRepresentation
bin11010110111000100…
…111011101100111100
32202110000001020101212
4122313010323230330
5433031334434140
621125521423552
72040500144453
oct326704735474
982400036355
1028841327420
11112601a5194
12570aa9abb8
132948310719
1415785d5b9a
15b3c053765
hex6b713bb3c

28841327420 has 24 divisors (see below), whose sum is σ = 60572181264. Its totient is φ = 11535503616.

The previous prime is 28841327401. The next prime is 28841327453. The reversal of 28841327420 is 2472314882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190667 + ... + 306653.

It is an arithmetic number, because the mean of its divisors is an integer number (2523840886).

Almost surely, 228841327420 is an apocalyptic number.

28841327420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28841327420 is an abundant number, since it is smaller than the sum of its proper divisors (31730853844).

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

28841327420 is a wasteful number, since it uses less digits than its factorization.

28841327420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128429 (or 128427 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 28841327420 in words is "twenty-eight billion, eight hundred forty-one million, three hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 12433 24866 49732 62165 115987 124330 231974 248660 463948 579935 1159870 2319740 1442066371 2884132742 5768265484 7210331855 14420663710 28841327420