Base | Representation |
---|---|
bin | 1101100011111100… |
… | …11010101111010100 |
3 | 200210102021220000010 |
4 | 12301332122233110 |
5 | 104402402200410 |
6 | 3202250520220 |
7 | 345266413620 |
oct | 66176325724 |
9 | 20712256003 |
10 | 7280896980 |
11 | 30a6970735 |
12 | 14b2436070 |
13 | 8c0575986 |
14 | 4d0d9a180 |
15 | 2c9302c20 |
hex | 1b1f9abd4 |
7280896980 has 192 divisors, whose sum is σ = 23685742080. Its totient is φ = 1636816896.
The previous prime is 7280896949. The next prime is 7280897017. The reversal of 7280896980 is 896980827.
It is a super-2 number, since 2×72808969802 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 7280896980.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7186954 + ... + 7187966.
It is an arithmetic number, because the mean of its divisors is an integer number (123363240).
Almost surely, 27280896980 is an apocalyptic number.
7280896980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7280896980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11842871040).
7280896980 is an abundant number, since it is smaller than the sum of its proper divisors (16404845100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7280896980 is a wasteful number, since it uses less digits than its factorization.
7280896980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).
The product of its (nonzero) digits is 3483648, while the sum is 57.
The square root of 7280896980 is about 85328.1722527794. The cubic root of 7280896980 is about 1938.1838123518.
The spelling of 7280896980 in words is "seven billion, two hundred eighty million, eight hundred ninety-six thousand, nine hundred eighty".
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