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47219269 is a prime number
BaseRepresentation
bin1011010000100…
…0001001000101
310021211222122211
42310020021011
544042004034
64404023421
71112233336
oct264101105
9107758584
1047219269
1124721599
1213991b71
139a237c6
1463b228d
15422ad64
hex2d08245

47219269 has 2 divisors, whose sum is σ = 47219270. Its totient is φ = 47219268.

The previous prime is 47219267. The next prime is 47219287. The reversal of 47219269 is 96291274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40170244 + 7049025 = 6338^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 47219269 - 21 = 47219267 is a prime.

It is a super-2 number, since 2×472192692 = 4459318729788722, which contains 22 as substring.

Together with 47219267, it forms a pair of twin primes.

It is a plaindrome in base 7.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47219261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23609634 + 23609635.

It is an arithmetic number, because the mean of its divisors is an integer number (23609635).

Almost surely, 247219269 is an apocalyptic number.

It is an amenable number.

47219269 is a deficient number, since it is larger than the sum of its proper divisors (1).

47219269 is an equidigital number, since it uses as much as digits as its factorization.

47219269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 47219269 is about 6871.6278275238. The cubic root of 47219269 is about 361.4429458220.

The spelling of 47219269 in words is "forty-seven million, two hundred nineteen thousand, two hundred sixty-nine".