Base | Representation |
---|---|
bin | 1101001000011001001010… |
… | …10000010011110000000000 |
3 | 10210020111012111101022212110 |
4 | 12210030211100103300000 |
5 | 12241044403140210300 |
6 | 141225150421255320 |
7 | 6040125343431666 |
oct | 644144520236000 |
9 | 123214174338773 |
10 | 28875690163200 |
11 | 9223125344951 |
12 | 32a4376264540 |
13 | 1315c7310467a |
14 | 71b83b472c36 |
15 | 3511ca033550 |
hex | 1a4325413c00 |
28875690163200 has 264 divisors, whose sum is σ = 101049526849392. Its totient is φ = 7247231713280.
The previous prime is 28875690163091. The next prime is 28875690163211. The reversal of 28875690163200 is 236109657882.
It is a super-2 number, since 2×288756901632002 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9752799 + ... + 12363998.
It is an arithmetic number, because the mean of its divisors is an integer number (382763359278).
Almost surely, 228875690163200 is an apocalyptic number.
28875690163200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28875690163200 is an abundant number, since it is smaller than the sum of its proper divisors (72173836686192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28875690163200 is a wasteful number, since it uses less digits than its factorization.
28875690163200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22116847 (or 22116824 counting only the distinct ones).
The product of its (nonzero) digits is 8709120, while the sum is 57.
The spelling of 28875690163200 in words is "twenty-eight trillion, eight hundred seventy-five billion, six hundred ninety million, one hundred sixty-three thousand, two hundred".
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