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230143002317 = 1417316238129
BaseRepresentation
bin1101011001010110010…
…1111000011011001101
3211000001001122212011122
43112111211320123031
512232313102033232
6253420511130325
722425105146144
oct3262545703315
9730031585148
10230143002317
118966a7a7a68
123872a5139a5
1318919203017
14b1d351275b
155ebe8e9312
hex35959786cd

230143002317 has 4 divisors (see below), whose sum is σ = 230159254620. Its totient is φ = 230126750016.

The previous prime is 230143002307. The next prime is 230143002337. The reversal of 230143002317 is 713200341032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78706058116 + 151436944201 = 280546^2 + 389149^2 .

It is a cyclic number.

It is not a de Polignac number, because 230143002317 - 224 = 230126225101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230143002307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8104892 + ... + 8133237.

It is an arithmetic number, because the mean of its divisors is an integer number (57539813655).

Almost surely, 2230143002317 is an apocalyptic number.

It is an amenable number.

230143002317 is a deficient number, since it is larger than the sum of its proper divisors (16252303).

230143002317 is a wasteful number, since it uses less digits than its factorization.

230143002317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252302.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 230143002317 its reverse (713200341032), we get a palindrome (943343343349).

The spelling of 230143002317 in words is "two hundred thirty billion, one hundred forty-three million, two thousand, three hundred seventeen".

Divisors: 1 14173 16238129 230143002317