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28369354740 = 22351481319259
BaseRepresentation
bin11010011010111100…
…011111111111110100
32201020002221112121020
4122122330133333310
5431100023322430
621011021421140
72023006352016
oct323274377764
981202845536
1028369354740
1111038841121
1255b8a0a7b0
1328a15bc74c
141531a581b6
15b108c4b10
hex69af1fff4

28369354740 has 48 divisors (see below), whose sum is σ = 79488077760. Its totient is φ = 7560029440.

The previous prime is 28369354709. The next prime is 28369354759. The reversal of 28369354740 is 4745396382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70770 + ... + 248489.

It is an arithmetic number, because the mean of its divisors is an integer number (1656001620).

Almost surely, 228369354740 is an apocalyptic number.

28369354740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28369354740 is an abundant number, since it is smaller than the sum of its proper divisors (51118723020).

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

28369354740 is a wasteful number, since it uses less digits than its factorization.

28369354740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320752 (or 320750 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 28369354740 in words is "twenty-eight billion, three hundred sixty-nine million, three hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1481 2962 4443 5924 7405 8886 14810 17772 22215 29620 44430 88860 319259 638518 957777 1277036 1596295 1915554 3192590 3831108 4788885 6385180 9577770 19155540 472822579 945645158 1418467737 1891290316 2364112895 2836935474 4728225790 5673870948 7092338685 9456451580 14184677370 28369354740