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230524143 = 3471634923
BaseRepresentation
bin11011011110110…
…00010011101111
3121001202211200020
431233120103233
5433003233033
634512533223
75466265023
oct1557302357
9531684606
10230524143
11109141223
1265251213
13389b3a25
142288a383
15153886b3
hexdbd84ef

230524143 has 8 divisors (see below), whose sum is σ = 313905408. Its totient is φ = 150412824.

The previous prime is 230524141. The next prime is 230524211. The reversal of 230524143 is 341425032.

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

It is not a de Polignac number, because 230524143 - 21 = 230524141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230524141) 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, 817321 + ... + 817602.

It is an arithmetic number, because the mean of its divisors is an integer number (39238176).

Almost surely, 2230524143 is an apocalyptic number.

230524143 is a deficient number, since it is larger than the sum of its proper divisors (83381265).

230524143 is a wasteful number, since it uses less digits than its factorization.

230524143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634973.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 230524143 is about 15183.0215372303. The cubic root of 230524143 is about 613.1576325709.

Adding to 230524143 its reverse (341425032), we get a palindrome (571949175).

The spelling of 230524143 in words is "two hundred thirty million, five hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 47 141 1634923 4904769 76841381 230524143