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14711021 = 131131617
BaseRepresentation
bin111000000111…
…100011101101
31000200101201122
4320013203231
512231223041
61243150325
7236020163
oct70074355
930611648
1014711021
118338676
124b153a5
133080c60
141d4d233
151458c4b
hexe078ed

14711021 has 4 divisors (see below), whose sum is σ = 15842652. Its totient is φ = 13579392.

The previous prime is 14711017. The next prime is 14711023. The reversal of 14711021 is 12011741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 835396 + 13875625 = 914^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 14711021 - 22 = 14711017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14711023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565796 + ... + 565821.

It is an arithmetic number, because the mean of its divisors is an integer number (3960663).

Almost surely, 214711021 is an apocalyptic number.

It is an amenable number.

14711021 is a deficient number, since it is larger than the sum of its proper divisors (1131631).

14711021 is a wasteful number, since it uses less digits than its factorization.

14711021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131630.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 14711021 is about 3835.4948833234. The cubic root of 14711021 is about 245.0271856547.

Adding to 14711021 its reverse (12011741), we get a palindrome (26722762).

The spelling of 14711021 in words is "fourteen million, seven hundred eleven thousand, twenty-one".

Divisors: 1 13 1131617 14711021