Base | Representation |
---|---|
bin | 1000001011110101011… |
… | …11101101010100011100 |
3 | 222212220120000001111000 |
4 | 10011322233231110130 |
5 | 14101430420412423 |
6 | 333110222030300 |
7 | 26214124160214 |
oct | 4057257552434 |
9 | 885816001430 |
10 | 281232200988 |
11 | a92a7278102 |
12 | 46608118390 |
13 | 2069b8111ab |
14 | d87c76d244 |
15 | 74aebde843 |
hex | 417abed51c |
281232200988 has 48 divisors (see below), whose sum is σ = 729150831360. Its totient is φ = 93740170032.
The previous prime is 281232200983. The next prime is 281232201001. The reversal of 281232200988 is 889002232182.
It is a super-2 number, since 2×2812322009882 (a number of 24 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (281232200983) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3860881 + ... + 3933047.
It is an arithmetic number, because the mean of its divisors is an integer number (15190642320).
Almost surely, 2281232200988 is an apocalyptic number.
It is an amenable number.
281232200988 is an abundant number, since it is smaller than the sum of its proper divisors (447918630372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
281232200988 is a wasteful number, since it uses less digits than its factorization.
281232200988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108263 (or 108255 counting only the distinct ones).
The product of its (nonzero) digits is 221184, while the sum is 45.
The spelling of 281232200988 in words is "two hundred eighty-one billion, two hundred thirty-two million, two hundred thousand, nine hundred eighty-eight".
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