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8514421 = 18147041
BaseRepresentation
bin100000011110…
…101101110101
3121000120120221
4200132231311
54134430141
6502254341
7132241246
oct40365565
917016527
108514421
114896013
122a273b1
1319c1626
1411b8ccd
15b32bd1
hex81eb75

8514421 has 4 divisors (see below), whose sum is σ = 8561644. Its totient is φ = 8467200.

The previous prime is 8514419. The next prime is 8514463. The reversal of 8514421 is 1244158.

8514421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 505521 + 8008900 = 711^2 + 2830^2 .

It is a cyclic number.

It is not a de Polignac number, because 8514421 - 21 = 8514419 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 (8514481) 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, 23340 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (2140411).

Almost surely, 28514421 is an apocalyptic number.

It is an amenable number.

8514421 is a deficient number, since it is larger than the sum of its proper divisors (47223).

8514421 is a wasteful number, since it uses less digits than its factorization.

8514421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47222.

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

The square root of 8514421 is about 2917.9480804154. The cubic root of 8514421 is about 204.1981046873.

Adding to 8514421 its reverse (1244158), we get a palindrome (9758579).

The spelling of 8514421 in words is "eight million, five hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 181 47041 8514421