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224142453 = 3224904717
BaseRepresentation
bin11010101110000…
…10010001110101
3120121202121122100
431113002101311
5424340024303
634124052313
75361115353
oct1527022165
9517677570
10224142453
111055825a7
1263094099
133758b092
1421aa87d3
1514a278a3
hexd5c2475

224142453 has 6 divisors (see below), whose sum is σ = 323761334. Its totient is φ = 149428296.

The previous prime is 224142439. The next prime is 224142473. The reversal of 224142453 is 354241422.

224142453 is a `hidden beast` number, since 2 + 2 + 414 + 245 + 3 = 666.

224142453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 223741764 + 400689 = 14958^2 + 633^2 .

It is a de Polignac number, because none of the positive numbers 2k-224142453 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 (224142473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12452350 + ... + 12452367.

Almost surely, 2224142453 is an apocalyptic number.

It is an amenable number.

224142453 is a deficient number, since it is larger than the sum of its proper divisors (99618881).

224142453 is a wasteful number, since it uses less digits than its factorization.

224142453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24904723 (or 24904720 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 224142453 is about 14971.3878114222. The cubic root of 224142453 is about 607.4465085249.

Adding to 224142453 its reverse (354241422), we get a palindrome (578383875).

The spelling of 224142453 in words is "two hundred twenty-four million, one hundred forty-two thousand, four hundred fifty-three".

Divisors: 1 3 9 24904717 74714151 224142453