Base | Representation |
---|---|
bin | 1011010110111… |
… | …1011100001100 |
3 | 10022122111001121 |
4 | 2311233130030 |
5 | 44144024010 |
6 | 4421050324 |
7 | 1115645032 |
oct | 265573414 |
9 | 108574047 |
10 | 47642380 |
11 | 24990475 |
12 | 13b569a4 |
13 | 9b41276 |
14 | 6482552 |
15 | 42b13da |
hex | 2d6f70c |
47642380 has 12 divisors (see below), whose sum is σ = 100049040. Its totient is φ = 19056944.
The previous prime is 47642363. The next prime is 47642383. The reversal of 47642380 is 8324674.
It is not an unprimeable number, because it can be changed into a prime (47642383) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191040 + ... + 1191079.
It is an arithmetic number, because the mean of its divisors is an integer number (8337420).
Almost surely, 247642380 is an apocalyptic number.
It is an amenable number.
47642380 is an abundant number, since it is smaller than the sum of its proper divisors (52406660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47642380 is a wasteful number, since it uses less digits than its factorization.
47642380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2382128 (or 2382126 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 34.
The square root of 47642380 is about 6902.3459779991. The cubic root of 47642380 is about 362.5193140720.
The spelling of 47642380 in words is "forty-seven million, six hundred forty-two thousand, three hundred eighty".
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