Base | Representation |
---|---|
bin | 1011010100101… |
… | …0100000001000 |
3 | 10022100210111220 |
4 | 2311022200020 |
5 | 44124203310 |
6 | 4413522040 |
7 | 1114444650 |
oct | 265124010 |
9 | 108323456 |
10 | 47491080 |
11 | 2489782a |
12 | 13aa3320 |
13 | 9aba440 |
14 | 6443360 |
15 | 4281670 |
hex | 2d4a808 |
47491080 has 128 divisors (see below), whose sum is σ = 175392000. Its totient is φ = 10017792.
The previous prime is 47491063. The next prime is 47491097. The reversal of 47491080 is 8019474.
It is an interprime number because it is at equal distance from previous prime (47491063) and next prime (47491097).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8746 + ... + 13094.
It is an arithmetic number, because the mean of its divisors is an integer number (1370250).
Almost surely, 247491080 is an apocalyptic number.
47491080 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 47491080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87696000).
47491080 is an abundant number, since it is smaller than the sum of its proper divisors (127900920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47491080 is a wasteful number, since it uses less digits than its factorization.
47491080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4383 (or 4379 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 47491080 is about 6891.3772208464. The cubic root of 47491080 is about 362.1351509439.
The spelling of 47491080 in words is "forty-seven million, four hundred ninety-one thousand, eighty".
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