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252214143 = 3103816227
BaseRepresentation
bin11110000100001…
…11101101111111
3122120120210202120
433002013231333
51004031323033
641005454023
76151533126
oct1702075577
9576523676
10252214143
1111a406245
1270571313
134033944c
14256d4abd
15172201b3
hexf087b7f

252214143 has 8 divisors (see below), whose sum is σ = 339550848. Its totient is φ = 166510104.

The previous prime is 252214139. The next prime is 252214177. The reversal of 252214143 is 341412252.

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

It is not a de Polignac number, because 252214143 - 22 = 252214139 is a prime.

It is a super-2 number, since 2×2522141432 = 127223947858448898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252214103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407805 + ... + 408422.

It is an arithmetic number, because the mean of its divisors is an integer number (42443856).

Almost surely, 2252214143 is an apocalyptic number.

252214143 is a deficient number, since it is larger than the sum of its proper divisors (87336705).

252214143 is a wasteful number, since it uses less digits than its factorization.

252214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816333.

The product of its digits is 1920, while the sum is 24.

The square root of 252214143 is about 15881.2513046044. The cubic root of 252214143 is about 631.8148250088.

Adding to 252214143 its reverse (341412252), we get a palindrome (593626395).

The spelling of 252214143 in words is "two hundred fifty-two million, two hundred fourteen thousand, one hundred forty-three".

Divisors: 1 3 103 309 816227 2448681 84071381 252214143