Search a number
-
+
230105605717 = 1317700431209
BaseRepresentation
bin1101011001001101011…
…1001110011001010101
3210222221110021220200101
43112103113032121111
512232224013340332
6253413053414101
722424142243151
oct3262327163125
9728843256611
10230105605717
1189650685389
1238719a9a331
131891153b460
14b1cc57a061
155ebb4adae7
hex35935ce655

230105605717 has 4 divisors (see below), whose sum is σ = 247806036940. Its totient is φ = 212405174496.

The previous prime is 230105605699. The next prime is 230105605753. The reversal of 230105605717 is 717506501032.

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 97919552241 + 132186053476 = 312921^2 + 363574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230105605717 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 (230105605417) 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, 8850215592 + ... + 8850215617.

It is an arithmetic number, because the mean of its divisors is an integer number (61951509235).

Almost surely, 2230105605717 is an apocalyptic number.

It is an amenable number.

230105605717 is a deficient number, since it is larger than the sum of its proper divisors (17700431223).

230105605717 is a wasteful number, since it uses less digits than its factorization.

230105605717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700431222.

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 230105605717 in words is "two hundred thirty billion, one hundred five million, six hundred five thousand, seven hundred seventeen".

Divisors: 1 13 17700431209 230105605717