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253337243 = 2919145737
BaseRepresentation
bin11110001100110…
…01111010011011
3122122200212100212
433012121322123
51004323242433
641045521335
76164221355
oct1706317233
9578625325
10253337243
11120003025
1270a1324b
13406406c3
14259080d5
1517392d48
hexf199e9b

253337243 has 8 divisors (see below), whose sum is σ = 263450880. Its totient is φ = 243315520.

The previous prime is 253337233. The next prime is 253337263. The reversal of 253337243 is 342733352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253337243 - 210 = 253336219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253337233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17330 + ... + 28407.

It is an arithmetic number, because the mean of its divisors is an integer number (32931360).

Almost surely, 2253337243 is an apocalyptic number.

253337243 is a deficient number, since it is larger than the sum of its proper divisors (10113637).

253337243 is a wasteful number, since it uses less digits than its factorization.

253337243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45957.

The product of its digits is 45360, while the sum is 32.

The square root of 253337243 is about 15916.5713330478. The cubic root of 253337243 is about 632.7512522296.

The spelling of 253337243 in words is "two hundred fifty-three million, three hundred thirty-seven thousand, two hundred forty-three".

Divisors: 1 29 191 5539 45737 1326373 8735767 253337243