Base | Representation |
---|---|
bin | 1011001111001… |
… | …0100110010101 |
3 | 10021200111121200 |
4 | 2303302212111 |
5 | 44031143104 |
6 | 4402103113 |
7 | 1111415151 |
oct | 263624625 |
9 | 107614550 |
10 | 47131029 |
11 | 24671270 |
12 | 1394aa99 |
13 | 99c25aa |
14 | 638c061 |
15 | 420eb39 |
hex | 2cf2995 |
47131029 has 24 divisors (see below), whose sum is σ = 75535200. Its totient is φ = 28076640.
The previous prime is 47131027. The next prime is 47131031. The reversal of 47131029 is 92013174.
It is an interprime number because it is at equal distance from previous prime (47131027) and next prime (47131031).
It is not a de Polignac number, because 47131029 - 21 = 47131027 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 47130993 and 47131011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47131027) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1807 + ... + 9875.
It is an arithmetic number, because the mean of its divisors is an integer number (3147300).
Almost surely, 247131029 is an apocalyptic number.
It is an amenable number.
47131029 is a deficient number, since it is larger than the sum of its proper divisors (28404171).
47131029 is a wasteful number, since it uses less digits than its factorization.
47131029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8145 (or 8142 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 47131029 is about 6865.2042212887. The cubic root of 47131029 is about 361.2176591698.
The spelling of 47131029 in words is "forty-seven million, one hundred thirty-one thousand, twenty-nine".
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