Base | Representation |
---|---|
bin | 101100100000100010… |
… | …010111110010001000 |
3 | 11120100121022000220002 |
4 | 230200202113302020 |
5 | 1240333333141410 |
6 | 33542112422132 |
7 | 3311202505262 |
oct | 544042276210 |
9 | 146317260802 |
10 | 47790521480 |
11 | 192a455a149 |
12 | 9318b47948 |
13 | 467809cca0 |
14 | 2455106b32 |
15 | 139a9047a5 |
hex | b20897c88 |
47790521480 has 128 divisors (see below), whose sum is σ = 122034366720. Its totient is φ = 16710988800.
The previous prime is 47790521473. The next prime is 47790521489. The reversal of 47790521480 is 8412509774.
It is not an unprimeable number, because it can be changed into a prime (47790521489) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188179 + ... + 1227741.
It is an arithmetic number, because the mean of its divisors is an integer number (953393490).
Almost surely, 247790521480 is an apocalyptic number.
47790521480 is a gapful number since it is divisible by the number (40) 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 47790521480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61017183360).
47790521480 is an abundant number, since it is smaller than the sum of its proper divisors (74243845240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47790521480 is a wasteful number, since it uses less digits than its factorization.
47790521480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39711 (or 39707 counting only the distinct ones).
The product of its (nonzero) digits is 564480, while the sum is 47.
The spelling of 47790521480 in words is "forty-seven billion, seven hundred ninety million, five hundred twenty-one thousand, four hundred eighty".
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