Base | Representation |
---|---|
bin | 1011010010100… |
… | …0100101001100 |
3 | 10022002201220222 |
4 | 2310220211030 |
5 | 44110232030 |
6 | 4410530512 |
7 | 1113325613 |
oct | 264504514 |
9 | 108081828 |
10 | 47352140 |
11 | 24802400 |
12 | 13a36a38 |
13 | 9a6c124 |
14 | 640887a |
15 | 42553e5 |
hex | 2d2894c |
47352140 has 72 divisors (see below), whose sum is σ = 115831296. Its totient is φ = 16192000.
The previous prime is 47352131. The next prime is 47352163. The reversal of 47352140 is 4125374.
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 23 ways as a sum of consecutive naturals, for example, 40565 + ... + 41715.
It is an arithmetic number, because the mean of its divisors is an integer number (1608768).
Almost surely, 247352140 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47352140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57915648).
47352140 is an abundant number, since it is smaller than the sum of its proper divisors (68479156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47352140 is a wasteful number, since it uses less digits than its factorization.
47352140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1199 (or 1186 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 26.
The square root of 47352140 is about 6881.2891234129. The cubic root of 47352140 is about 361.7816515425.
The spelling of 47352140 in words is "forty-seven million, three hundred fifty-two thousand, one hundred forty".
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