Base | Representation |
---|---|
bin | 1011010011100… |
… | …0000010111000 |
3 | 10022012221210220 |
4 | 2310320002320 |
5 | 44114243410 |
6 | 4412140040 |
7 | 1114011360 |
oct | 264700270 |
9 | 108187726 |
10 | 47415480 |
11 | 24845a52 |
12 | 13a67620 |
13 | 9a91bc8 |
14 | 64239a0 |
15 | 4269070 |
hex | 2d380b8 |
47415480 has 128 divisors (see below), whose sum is σ = 166164480. Its totient is φ = 10598400.
The previous prime is 47415457. The next prime is 47415497. The reversal of 47415480 is 8451474.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38880 + ... + 40080.
It is an arithmetic number, because the mean of its divisors is an integer number (1298160).
Almost surely, 247415480 is an apocalyptic number.
47415480 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 47415480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83082240).
47415480 is an abundant number, since it is smaller than the sum of its proper divisors (118749000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47415480 is a wasteful number, since it uses less digits than its factorization.
47415480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1269 (or 1265 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 33.
The square root of 47415480 is about 6885.8899207002. The cubic root of 47415480 is about 361.9428905767.
It can be divided in two parts, 47415 and 480, that added together give a triangular number (47895 = T309).
The spelling of 47415480 in words is "forty-seven million, four hundred fifteen thousand, four hundred eighty".
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