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47080681 is a prime number
BaseRepresentation
bin1011001110011…
…0010011101001
310021120221112221
42303212103221
544023040211
64401034041
71111115314
oct263462351
9107527487
1047080681
112463745a
1213925921
1399a56bb
14637797b
1541eec71
hex2ce64e9

47080681 has 2 divisors, whose sum is σ = 47080682. Its totient is φ = 47080680.

The previous prime is 47080591. The next prime is 47080703. The reversal of 47080681 is 18608074.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40755456 + 6325225 = 6384^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 47080681 - 221 = 44983529 is a prime.

It is a super-2 number, since 2×470806812 = 4433181046847522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47080181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23540340 + 23540341.

It is an arithmetic number, because the mean of its divisors is an integer number (23540341).

Almost surely, 247080681 is an apocalyptic number.

It is an amenable number.

47080681 is a deficient number, since it is larger than the sum of its proper divisors (1).

47080681 is an equidigital number, since it uses as much as digits as its factorization.

47080681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 47080681 is about 6861.5363439976. The cubic root of 47080681 is about 361.0889890424.

The spelling of 47080681 in words is "forty-seven million, eighty thousand, six hundred eighty-one".