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47801497 is a prime number
BaseRepresentation
bin1011011001011…
…0010010011001
310022221120022211
42312112102121
544214121442
64424315121
71120206652
oct266262231
9108846284
1047801497
1124a89a77
1214012aa1
139b98813
1464c4529
1542e3617
hex2d96499

47801497 has 2 divisors, whose sum is σ = 47801498. Its totient is φ = 47801496.

The previous prime is 47801477. The next prime is 47801513. The reversal of 47801497 is 79410874.

47801497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 2157961 = 6756^2 + 1469^2 .

It is a cyclic number.

It is not a de Polignac number, because 47801497 - 223 = 39412889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47801407) 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 as a sum of consecutive naturals, namely, 23900748 + 23900749.

It is an arithmetic number, because the mean of its divisors is an integer number (23900749).

Almost surely, 247801497 is an apocalyptic number.

It is an amenable number.

47801497 is a deficient number, since it is larger than the sum of its proper divisors (1).

47801497 is an equidigital number, since it uses as much as digits as its factorization.

47801497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 47801497 is about 6913.8626685811. The cubic root of 47801497 is about 362.9224487576.

The spelling of 47801497 in words is "forty-seven million, eight hundred one thousand, four hundred ninety-seven".