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47234131 = 76747733
BaseRepresentation
bin1011010000101…
…1110001010011
310021212202001021
42310023301103
544042443011
64404220311
71112324560
oct264136123
9107782037
1047234131
112473177a
121399a697
139a2a4b9
1463b7867
154230471
hex2d0bc53

47234131 has 4 divisors (see below), whose sum is σ = 53981872. Its totient is φ = 40486392.

The previous prime is 47234123. The next prime is 47234141. The reversal of 47234131 is 13143274.

47234131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47234131 - 23 = 47234123 is a prime.

It is a super-2 number, since 2×472341312 = 4462126262650322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47234096 and 47234105.

It is not an unprimeable number, because it can be changed into a prime (47234101) 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 3 ways as a sum of consecutive naturals, for example, 3373860 + ... + 3373873.

It is an arithmetic number, because the mean of its divisors is an integer number (13495468).

Almost surely, 247234131 is an apocalyptic number.

47234131 is a deficient number, since it is larger than the sum of its proper divisors (6747741).

47234131 is an equidigital number, since it uses as much as digits as its factorization.

47234131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747740.

The product of its digits is 2016, while the sum is 25.

The square root of 47234131 is about 6872.7091455990. The cubic root of 47234131 is about 361.4808625574.

The spelling of 47234131 in words is "forty-seven million, two hundred thirty-four thousand, one hundred thirty-one".

Divisors: 1 7 6747733 47234131