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47000331 = 35727631
BaseRepresentation
bin1011001101001…
…0101100001011
310021102212100000
42303102230023
544013002311
64355214043
71110332130
oct263225413
9107385300
1047000331
1124592054
12138a7323
139977c61
146356587
1541d6056
hex2cd2b0b

47000331 has 24 divisors (see below), whose sum is σ = 80464384. Its totient is φ = 26856360.

The previous prime is 47000321. The next prime is 47000351. The reversal of 47000331 is 13300074.

47000331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47000331 - 211 = 46998283 is a prime.

It is a super-2 number, since 2×470003312 = 4418062228219122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47000321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12115 + ... + 15516.

Almost surely, 247000331 is an apocalyptic number.

47000331 is a deficient number, since it is larger than the sum of its proper divisors (33464053).

47000331 is an equidigital number, since it uses as much as digits as its factorization.

47000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27653 (or 27641 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 47000331 is about 6855.6787410146. The cubic root of 47000331 is about 360.8834551902.

The spelling of 47000331 in words is "forty-seven million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 7 9 21 27 63 81 189 243 567 1701 27631 82893 193417 248679 580251 746037 1740753 2238111 5222259 6714333 15666777 47000331