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828879285120 = 27351373151153
BaseRepresentation
bin11000000111111010000…
…11100010101110000000
32221020111000121102120020
430003331003202232000
5102040021044110440
61432440515413440
7113612254450365
oct14037503425600
92836430542506
10828879285120
1129a586825087
12114785bb4280
13602170ba173
142c1919dc46c
15168638423d0
hexc0fd0e2b80

828879285120 has 128 divisors (see below), whose sum is σ = 2661338622240. Its totient is φ = 219421016064.

The previous prime is 828879285107. The next prime is 828879285121. The reversal of 828879285120 is 21582978828.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828879285121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1312537 + ... + 1838616.

Almost surely, 2828879285120 is an apocalyptic number.

828879285120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

828879285120 is an abundant number, since it is smaller than the sum of its proper divisors (1832459337120).

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

828879285120 is a wasteful number, since it uses less digits than its factorization.

828879285120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151312 (or 3151300 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 828879285120 in words is "eight hundred twenty-eight billion, eight hundred seventy-nine million, two hundred eighty-five thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 137 160 192 240 274 320 384 411 480 548 640 685 822 960 1096 1370 1644 1920 2055 2192 2740 3288 4110 4384 5480 6576 8220 8768 10960 13152 16440 17536 21920 26304 32880 43840 52608 65760 87680 131520 263040 3151153 6302306 9453459 12604612 15755765 18906918 25209224 31511530 37813836 47267295 50418448 63023060 75627672 94534590 100836896 126046120 151255344 189069180 201673792 252092240 302510688 378138360 403347584 431707961 504184480 605021376 756276720 863415922 1008368960 1210042752 1295123883 1512553440 1726831844 2016737920 2158539805 2590247766 3025106880 3453663688 4317079610 5180495532 6050213760 6475619415 6907327376 8634159220 10360991064 12951238830 13814654752 17268318440 20721982128 25902477660 27629309504 34536636880 41443964256 51804955320 55258619008 69073273760 82887928512 103609910640 138146547520 165775857024 207219821280 276293095040 414439642560 828879285120