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4500238 = 22250119
BaseRepresentation
bin10001001010101100001110
322110122011111
4101022230032
52123001423
6240242234
753152141
oct21125416
98418144
104500238
1125a4106
12161037a
13c17482
14852058
155dd60d
hex44ab0e

4500238 has 4 divisors (see below), whose sum is σ = 6750360. Its totient is φ = 2250118.

The previous prime is 4500233. The next prime is 4500259. The reversal of 4500238 is 8320054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8320054 = 24160027.

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 (4500233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125058 + ... + 1125061.

It is an arithmetic number, because the mean of its divisors is an integer number (1687590).

Almost surely, 24500238 is an apocalyptic number.

4500238 is a deficient number, since it is larger than the sum of its proper divisors (2250122).

4500238 is a wasteful number, since it uses less digits than its factorization.

4500238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250121.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4500238 is about 2121.3764399559. The cubic root of 4500238 is about 165.0992729811.

The spelling of 4500238 in words is "four million, five hundred thousand, two hundred thirty-eight".

Divisors: 1 2 2250119 4500238