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28808133600 = 2535212003389
BaseRepresentation
bin11010110101000110…
…010011101111100000
32202100200120211001010
4122311012103233200
5432444340233400
621122334140520
72036615044461
oct326506235740
982320524033
1028808133600
1111243493184
1256bb951740
13294148aacc
141574034d68
15b39198450
hex6b5193be0

28808133600 has 72 divisors (see below), whose sum is σ = 93770482680. Its totient is φ = 7682168320.

The previous prime is 28808133577. The next prime is 28808133619. The reversal of 28808133600 is 633180882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5999295 + ... + 6004094.

It is an arithmetic number, because the mean of its divisors is an integer number (1302367815).

Almost surely, 228808133600 is an apocalyptic number.

28808133600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28808133600 is an abundant number, since it is smaller than the sum of its proper divisors (64962349080).

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

28808133600 is a wasteful number, since it uses less digits than its factorization.

28808133600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12003412 (or 12003399 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 28808133600 in words is "twenty-eight billion, eight hundred eight million, one hundred thirty-three thousand, six hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 400 480 600 800 1200 2400 12003389 24006778 36010167 48013556 60016945 72020334 96027112 120033890 144040668 180050835 192054224 240067780 288081336 300084725 360101670 384108448 480135560 576162672 600169450 720203340 900254175 960271120 1152325344 1200338900 1440406680 1800508350 1920542240 2400677800 2880813360 3601016700 4801355600 5761626720 7202033400 9602711200 14404066800 28808133600