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47808049 is a prime number
BaseRepresentation
bin1011011001011…
…1111000110001
310022221220022111
42312113320301
544214324144
64424405321
71120235032
oct266277061
9108856274
1047808049
1124a93993
1214016841
139b9b7b3
1464c6a89
1542e5534
hex2d97e31

47808049 has 2 divisors, whose sum is σ = 47808050. Its totient is φ = 47808048.

The previous prime is 47808023. The next prime is 47808109. The reversal of 47808049 is 94080874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 2002225 = 6768^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 47808049 - 25 = 47808017 is a prime.

It is not a weakly prime, because it can be changed into another prime (47808149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23904024 + 23904025.

It is an arithmetic number, because the mean of its divisors is an integer number (23904025).

Almost surely, 247808049 is an apocalyptic number.

It is an amenable number.

47808049 is a deficient number, since it is larger than the sum of its proper divisors (1).

47808049 is an equidigital number, since it uses as much as digits as its factorization.

47808049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 47808049 is about 6914.3364829895. The cubic root of 47808049 is about 362.9390295441.

Adding to 47808049 its product of nonzero digits (64512), we get a square (47872561 = 69192).

The spelling of 47808049 in words is "forty-seven million, eight hundred eight thousand, forty-nine".