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28313628806000 = 245398831432441
BaseRepresentation
bin1100111000000010001111…
…10010011000101101110000
310201020202102110210000101202
412130001013302120231300
512202342302433243000
6140115033531550332
75651410054634006
oct634010762305560
9121222373700352
1028313628806000
1190268193651aa
123213454bbb3a8
1312a4c6b44b735
146dc55bacca76
15341780c19dd5
hex19c047c98b70

28313628806000 has 80 divisors (see below), whose sum is σ = 68469329536608. Its totient is φ = 11324297664000.

The previous prime is 28313628805919. The next prime is 28313628806017. The reversal of 28313628806000 is 60882631382.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 19049780 + ... + 20482220.

Almost surely, 228313628806000 is an apocalyptic number.

28313628806000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28313628806000 is an abundant number, since it is smaller than the sum of its proper divisors (40155700730608).

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

28313628806000 is a wasteful number, since it uses less digits than its factorization.

28313628806000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442347 (or 1442331 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 28313628806000 in words is "twenty-eight trillion, three hundred thirteen billion, six hundred twenty-eight million, eight hundred six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 9883 19766 39532 49415 79064 98830 158128 197660 247075 395320 494150 790640 988300 1235375 1432441 1976600 2470750 2864882 3953200 4941500 5729764 7162205 9883000 11459528 14324410 19766000 22919056 28648820 35811025 57297640 71622050 114595280 143244100 179055125 286488200 358110250 572976400 716220500 1432441000 2864882000 14156814403 28313628806 56627257612 70784072015 113254515224 141568144030 226509030448 283136288060 353920360075 566272576120 707840720150 1132545152240 1415681440300 1769601800375 2831362880600 3539203600750 5662725761200 7078407201500 14156814403000 28313628806000