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253043223 = 384347741
BaseRepresentation
bin11110001010100…
…10001000010111
3122122010221001020
433011102020113
51004234340343
641035332223
76161555226
oct1705221027
9578127036
10253043223
1111a922134
12708b1073
1340569924
142586ccbd
1517335b83
hexf152217

253043223 has 4 divisors (see below), whose sum is σ = 337390968. Its totient is φ = 168695480.

The previous prime is 253043213. The next prime is 253043257. The reversal of 253043223 is 322340352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253043223 - 25 = 253043191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253043193 and 253043202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253043213) 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 in 3 ways as a sum of consecutive naturals, for example, 42173868 + ... + 42173873.

It is an arithmetic number, because the mean of its divisors is an integer number (84347742).

Almost surely, 2253043223 is an apocalyptic number.

253043223 is a deficient number, since it is larger than the sum of its proper divisors (84347745).

253043223 is an equidigital number, since it uses as much as digits as its factorization.

253043223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84347744.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 253043223 is about 15907.3323659248. The cubic root of 253043223 is about 632.5063697693.

Adding to 253043223 its reverse (322340352), we get a palindrome (575383575).

It can be divided in two parts, 2530 and 43223, that added together give a triangular number (45753 = T302).

The spelling of 253043223 in words is "two hundred fifty-three million, forty-three thousand, two hundred twenty-three".

Divisors: 1 3 84347741 253043223