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450454 = 2225227
BaseRepresentation
bin1101101111110010110
3211212220111
41231332112
5103403304
613353234
73554164
oct1557626
9755814
10450454
11288484
1219881a
1312a054
14ba234
158d704
hex6df96

450454 has 4 divisors (see below), whose sum is σ = 675684. Its totient is φ = 225226.

The previous prime is 450451. The next prime is 450473. The reversal of 450454 is 454054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454054 = 2227027.

It is a super-2 number, since 2×4504542 = 405817612232, which contains 22 as substring.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450451) 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 as a sum of consecutive naturals, namely, 112612 + ... + 112615.

It is an arithmetic number, because the mean of its divisors is an integer number (168921).

2450454 is an apocalyptic number.

450454 is a deficient number, since it is larger than the sum of its proper divisors (225230).

450454 is a wasteful number, since it uses less digits than its factorization.

450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225229.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 450454 is about 671.1586995637. The cubic root of 450454 is about 76.6567052800.

Subtracting 450454 from its reverse (454054), we obtain a square (3600 = 602).

The spelling of 450454 in words is "four hundred fifty thousand, four hundred fifty-four".

Divisors: 1 2 225227 450454