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5458 = 22729
BaseRepresentation
bin1010101010010
321111011
41111102
5133313
641134
721625
oct12522
97434
105458
114112
1231aa
13263b
141dbc
15193d
hex1552

5458 has 4 divisors (see below), whose sum is σ = 8190. Its totient is φ = 2728.

The previous prime is 5449. The next prime is 5471. The reversal of 5458 is 8545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8545 = 51709.

It can be written as a sum of positive squares in only one way, i.e., 3249 + 2209 = 57^2 + 47^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

5458 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1363 + ... + 1366.

25458 is an apocalyptic number.

5458 is a deficient number, since it is larger than the sum of its proper divisors (2732).

5458 is a wasteful number, since it uses less digits than its factorization.

5458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731.

The product of its digits is 800, while the sum is 22.

The square root of 5458 is about 73.8782782691. The cubic root of 5458 is about 17.6066951112.

The spelling of 5458 in words is "five thousand, four hundred fifty-eight".

Divisors: 1 2 2729 5458