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252247023 = 32714892689
BaseRepresentation
bin11110000100011…
…11101111101111
3122120122110212100
433002033233233
51004033401043
641010310143
76152031030
oct1702175757
9576573770
10252247023
1111a428a16
1270588353
134034b3c2
1425702a87
1517229cd3
hexf08fbef

252247023 has 24 divisors (see below), whose sum is σ = 416842400. Its totient is φ = 143990784.

The previous prime is 252246997. The next prime is 252247057. The reversal of 252247023 is 320742252.

It is not a de Polignac number, because 252247023 - 25 = 252246991 is a prime.

It is a super-2 number, since 2×2522470232 = 127257121224725058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252247123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92463 + ... + 95151.

Almost surely, 2252247023 is an apocalyptic number.

252247023 is a deficient number, since it is larger than the sum of its proper divisors (164595377).

252247023 is a wasteful number, since it uses less digits than its factorization.

252247023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 252247023 is about 15882.2864537824. The cubic root of 252247023 is about 631.8422794152.

Adding to 252247023 its reverse (320742252), we get a palindrome (572989275).

The spelling of 252247023 in words is "two hundred fifty-two million, two hundred forty-seven thousand, twenty-three".

Divisors: 1 3 7 9 21 63 1489 2689 4467 8067 10423 13401 18823 24201 31269 56469 93807 169407 4003921 12011763 28027447 36035289 84082341 252247023