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14240581 is a prime number
BaseRepresentation
bin110110010100…
…101101000101
3222210111101221
4312110231011
512121144311
61225120341
7232020505
oct66245505
928714357
1014240581
118047183
1249290b1
132c47aa4
141c69a05
1513b4671
hexd94b45

14240581 has 2 divisors, whose sum is σ = 14240582. Its totient is φ = 14240580.

The previous prime is 14240579. The next prime is 14240647. The reversal of 14240581 is 18504241.

14240581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13439556 + 801025 = 3666^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 14240581 - 21 = 14240579 is a prime.

It is a super-2 number, since 2×142405812 = 405588294435122, which contains 22 as substring.

Together with 14240579, 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 (14246581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7120290 + 7120291.

It is an arithmetic number, because the mean of its divisors is an integer number (7120291).

Almost surely, 214240581 is an apocalyptic number.

It is an amenable number.

14240581 is a deficient number, since it is larger than the sum of its proper divisors (1).

14240581 is an equidigital number, since it uses as much as digits as its factorization.

14240581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 14240581 is about 3773.6694343835. The cubic root of 14240581 is about 242.3869512395.

The spelling of 14240581 in words is "fourteen million, two hundred forty thousand, five hundred eighty-one".