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14521247 = 131765707
BaseRepresentation
bin110111011001…
…001110011111
31000022202101222
4313121032133
512204134442
61235123555
7234266666
oct67311637
930282358
1014521247
118219034
124a435bb
133015770
141cddddd
15141c8d2
hexdd939f

14521247 has 8 divisors (see below), whose sum is σ = 16558416. Its totient is φ = 12615552.

The previous prime is 14521207. The next prime is 14521253. The reversal of 14521247 is 74212541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14521247 - 26 = 14521183 is a prime.

It is a super-2 number, since 2×145212472 = 421733228870018, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14521207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32633 + ... + 33074.

It is an arithmetic number, because the mean of its divisors is an integer number (2069802).

Almost surely, 214521247 is an apocalyptic number.

14521247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

14521247 is a deficient number, since it is larger than the sum of its proper divisors (2037169).

14521247 is a wasteful number, since it uses less digits than its factorization.

14521247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65737.

The product of its digits is 2240, while the sum is 26.

The square root of 14521247 is about 3810.6753994535. The cubic root of 14521247 is about 243.9689952094.

Adding to 14521247 its reverse (74212541), we get a palindrome (88733788).

The spelling of 14521247 in words is "fourteen million, five hundred twenty-one thousand, two hundred forty-seven".

Divisors: 1 13 17 221 65707 854191 1117019 14521247