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13454224 = 24721312
BaseRepresentation
bin110011010100…
…101110010000
3221022112201121
4303110232100
511421013344
61200212024
7222234100
oct63245620
927275647
1013454224
11765a3a3
12460a014
132a30ba4
141b03200
1512ab684
hexcd4b90

13454224 has 45 divisors (see below), whose sum is σ = 30556731. Its totient is φ = 5722080.

The previous prime is 13454213. The next prime is 13454237. The reversal of 13454224 is 42245431.

It is a happy number.

The square root of 13454224 is 3668.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×134542242 = 362032286884352, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 102639 + ... + 102769.

Almost surely, 213454224 is an apocalyptic number.

13454224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13454224 is the 3668-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13454224

13454224 is an abundant number, since it is smaller than the sum of its proper divisors (17102507).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13454224 is an equidigital number, since it uses as much as digits as its factorization.

13454224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 140 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The cubic root of 13454224 is about 237.8407238817.

Multiplying 13454224 by its sum of digits (25), we get a square (336355600 = 183402).

Adding to 13454224 its reverse (42245431), we get a palindrome (55699655).

It can be divided in two parts, 13454 and 224, that multiplied together give a square (3013696 = 17362).

The spelling of 13454224 in words is "thirteen million, four hundred fifty-four thousand, two hundred twenty-four".