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47132489 is a prime number
BaseRepresentation
bin1011001111001…
…0111101001001
310021200120121202
42303302331021
544031214424
64402113545
71111422335
oct263627511
9107616552
1047132489
1124672378
121394b8b5
1399c3161
14638c7c5
1542102ae
hex2cf2f49

47132489 has 2 divisors, whose sum is σ = 47132490. Its totient is φ = 47132488.

The previous prime is 47132467. The next prime is 47132507. The reversal of 47132489 is 98423174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46308025 + 824464 = 6805^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 47132489 - 216 = 47066953 is a prime.

It is not a weakly prime, because it can be changed into another prime (47131489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23566244 + 23566245.

It is an arithmetic number, because the mean of its divisors is an integer number (23566245).

Almost surely, 247132489 is an apocalyptic number.

It is an amenable number.

47132489 is a deficient number, since it is larger than the sum of its proper divisors (1).

47132489 is an equidigital number, since it uses as much as digits as its factorization.

47132489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 47132489 is about 6865.3105537914. The cubic root of 47132489 is about 361.2213890009.

The spelling of 47132489 in words is "forty-seven million, one hundred thirty-two thousand, four hundred eighty-nine".