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10272391 is a prime number
BaseRepresentation
bin100111001011…
…111010000111
3201022220001221
4213023322013
510112204031
61004101211
7153212443
oct47137207
921286057
1010272391
115886888
123534807
13218884c
141515823
15d7da11
hex9cbe87

10272391 has 2 divisors, whose sum is σ = 10272392. Its totient is φ = 10272390.

The previous prime is 10272389. The next prime is 10272413. The reversal of 10272391 is 19327201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10272391 - 21 = 10272389 is a prime.

Together with 10272389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10272371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5136195 + 5136196.

It is an arithmetic number, because the mean of its divisors is an integer number (5136196).

Almost surely, 210272391 is an apocalyptic number.

10272391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10272391 is an equidigital number, since it uses as much as digits as its factorization.

10272391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 10272391 is about 3205.0570977753. The cubic root of 10272391 is about 217.3821336984.

Adding to 10272391 its reverse (19327201), we get a palindrome (29599592).

The spelling of 10272391 in words is "ten million, two hundred seventy-two thousand, three hundred ninety-one".