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252144323 = 17107138617
BaseRepresentation
bin11110000011101…
…10101011000011
3122120110020222122
433001312223003
51004022104243
641004154455
76151122434
oct1701665303
9576406878
10252144323
1111a368842
1270538a2b
1340313732
14256b748b
1517209668
hexf076ac3

252144323 has 8 divisors (see below), whose sum is σ = 269473392. Its totient is φ = 235092736.

The previous prime is 252144313. The next prime is 252144337. The reversal of 252144323 is 323441252.

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 252144323 - 212 = 252140227 is a prime.

It is a super-2 number, since 2×2521443232 = 127153519242256658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252144292 and 252144301.

It is not an unprimeable number, because it can be changed into a prime (252144313) 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, 67490 + ... + 71127.

It is an arithmetic number, because the mean of its divisors is an integer number (33684174).

Almost surely, 2252144323 is an apocalyptic number.

252144323 is a deficient number, since it is larger than the sum of its proper divisors (17329069).

252144323 is a wasteful number, since it uses less digits than its factorization.

252144323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138741.

The product of its digits is 5760, while the sum is 26.

The square root of 252144323 is about 15879.0529629446. The cubic root of 252144323 is about 631.7565182306.

Adding to 252144323 its reverse (323441252), we get a palindrome (575585575).

The spelling of 252144323 in words is "two hundred fifty-two million, one hundred forty-four thousand, three hundred twenty-three".

Divisors: 1 17 107 1819 138617 2356489 14832019 252144323