Base | Representation |
---|---|
bin | 1100111001011110000101… |
… | …10100111001001001111100 |
3 | 10201102110200220011102011200 |
4 | 12130233002310321021330 |
5 | 12204144244022412423 |
6 | 140153430444415500 |
7 | 5655104015423232 |
oct | 634570264711174 |
9 | 121373626142150 |
10 | 28362937700988 |
11 | 9045721a03890 |
12 | 3220b16547590 |
13 | 12a97c8c74987 |
14 | 700ab871c952 |
15 | 342bb9a97d43 |
hex | 19cbc2d3927c |
28362937700988 has 144 divisors (see below), whose sum is σ = 78432597734400. Its totient is φ = 8570718351360.
The previous prime is 28362937700971. The next prime is 28362937701011. The reversal of 28362937700988 is 88900773926382.
28362937700988 is a `hidden beast` number, since 28 + 362 + 93 + 7 + 70 + 0 + 98 + 8 = 666.
It is a super-2 number, since 2×283629377009882 (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 47 ways as a sum of consecutive naturals, for example, 267211695 + ... + 267317817.
It is an arithmetic number, because the mean of its divisors is an integer number (544670817600).
Almost surely, 228362937700988 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28362937700988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39216298867200).
28362937700988 is an abundant number, since it is smaller than the sum of its proper divisors (50069660033412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28362937700988 is a wasteful number, since it uses less digits than its factorization.
28362937700988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108032 (or 108027 counting only the distinct ones).
The product of its (nonzero) digits is 438939648, while the sum is 72.
The spelling of 28362937700988 in words is "twenty-eight trillion, three hundred sixty-two billion, nine hundred thirty-seven million, seven hundred thousand, nine hundred eighty-eight".
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