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47267081 is a prime number
BaseRepresentation
bin1011010001001…
…1110100001001
310021221102020122
42310103310021
544100021311
64405033025
71112522621
oct264236411
9107842218
1047267081
1124754504
12139b5775
139a3c4b4
1463c5881
15423a0db
hex2d13d09

47267081 has 2 divisors, whose sum is σ = 47267082. Its totient is φ = 47267080.

The previous prime is 47267057. The next prime is 47267107. The reversal of 47267081 is 18076274.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 11971600 = 5941^2 + 3460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47267081 is a prime.

It is a super-2 number, since 2×472670812 = 4468353892521122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47267581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23633540 + 23633541.

It is an arithmetic number, because the mean of its divisors is an integer number (23633541).

Almost surely, 247267081 is an apocalyptic number.

It is an amenable number.

47267081 is a deficient number, since it is larger than the sum of its proper divisors (1).

47267081 is an equidigital number, since it uses as much as digits as its factorization.

47267081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 47267081 is about 6875.1058900936. The cubic root of 47267081 is about 361.5648980181.

The spelling of 47267081 in words is "forty-seven million, two hundred sixty-seven thousand, eighty-one".