Base | Representation |
---|---|
bin | 1011011011100… |
… | …1000011111010 |
3 | 10100012210201010 |
4 | 2312321003322 |
5 | 44233201210 |
6 | 4431334350 |
7 | 1121342136 |
oct | 266710372 |
9 | 110183633 |
10 | 47943930 |
11 | 25076a91 |
12 | 140813b6 |
13 | 9c185b8 |
14 | 65203c6 |
15 | 4320920 |
hex | 2db90fa |
47943930 has 16 divisors (see below), whose sum is σ = 115065504. Its totient is φ = 12785040.
The previous prime is 47943923. The next prime is 47943941. The reversal of 47943930 is 3934974.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799036 + ... + 799095.
It is an arithmetic number, because the mean of its divisors is an integer number (7191594).
Almost surely, 247943930 is an apocalyptic number.
47943930 is an abundant number, since it is smaller than the sum of its proper divisors (67121574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47943930 is a wasteful number, since it uses less digits than its factorization.
47943930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1598141.
The product of its (nonzero) digits is 81648, while the sum is 39.
The square root of 47943930 is about 6924.1555441801. The cubic root of 47943930 is about 363.2825551647.
The spelling of 47943930 in words is "forty-seven million, nine hundred forty-three thousand, nine hundred thirty".
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