Base | Representation |
---|---|
bin | 11010110010010000… |
… | …111000000010110110 |
3 | 2202020101002102220120 |
4 | 122302100320002312 |
5 | 432400201301321 |
6 | 21113514512410 |
7 | 2035466554251 |
oct | 326220700266 |
9 | 82211072816 |
10 | 28760572086 |
11 | 11219658544 |
12 | 56a7a35706 |
13 | 29346775bc |
14 | 156b9b4098 |
15 | b34e00ec6 |
hex | 6b24380b6 |
28760572086 has 32 divisors (see below), whose sum is σ = 60921380448. Its totient is φ = 9020459520.
The previous prime is 28760572037. The next prime is 28760572091. The reversal of 28760572086 is 68027506782.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (51).
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, 356416 + ... + 429596.
It is an arithmetic number, because the mean of its divisors is an integer number (1903793139).
Almost surely, 228760572086 is an apocalyptic number.
28760572086 is an abundant number, since it is smaller than the sum of its proper divisors (32160808362).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28760572086 is a wasteful number, since it uses less digits than its factorization.
28760572086 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77056.
The product of its (nonzero) digits is 2257920, while the sum is 51.
The spelling of 28760572086 in words is "twenty-eight billion, seven hundred sixty million, five hundred seventy-two thousand, eighty-six".
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