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47792081 is a prime number
BaseRepresentation
bin1011011001001…
…1111111010001
310022221002102002
42312103333101
544213321311
64424203345
71120140341
oct266237721
9108832362
1047792081
1124a82997
1214009555
139b9444c
1464c0d21
1542e093b
hex2d93fd1

47792081 has 2 divisors, whose sum is σ = 47792082. Its totient is φ = 47792080.

The previous prime is 47792057. The next prime is 47792093. The reversal of 47792081 is 18029774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32307856 + 15484225 = 5684^2 + 3935^2 .

It is a cyclic number.

It is not a de Polignac number, because 47792081 - 214 = 47775697 is a prime.

It is a super-2 number, since 2×477920812 = 4568166012621122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47792281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23896040 + 23896041.

It is an arithmetic number, because the mean of its divisors is an integer number (23896041).

Almost surely, 247792081 is an apocalyptic number.

It is an amenable number.

47792081 is a deficient number, since it is larger than the sum of its proper divisors (1).

47792081 is an equidigital number, since it uses as much as digits as its factorization.

47792081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 47792081 is about 6913.1816842898. The cubic root of 47792081 is about 362.8986175501.

The spelling of 47792081 in words is "forty-seven million, seven hundred ninety-two thousand, eighty-one".