Search a number
-
+
231302042413 = 1329613533269
BaseRepresentation
bin1101011101101010101…
…1010001001100101101
3211010000211121012021121
43113122223101030231
512242201310324123
6254131513300541
722465610630611
oct3273253211455
9733024535247
10231302042413
118a104a77a42
12389b2704751
1318a72385a70
14b2a341d341
15603b54375d
hex35daad132d

231302042413 has 8 divisors (see below), whose sum is σ = 257683973400. Its totient is φ = 206147178048.

The previous prime is 231302042407. The next prime is 231302042429. The reversal of 231302042413 is 314240203132.

It can be written as a sum of positive squares in 4 ways, for example, as 26239788169 + 205062254244 = 161987^2 + 452838^2 .

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 231302042413 - 217 = 231301911341 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 (231302042113) 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, 306766258 + ... + 306767011.

It is an arithmetic number, because the mean of its divisors is an integer number (32210496675).

Almost surely, 2231302042413 is an apocalyptic number.

It is an amenable number.

231302042413 is a deficient number, since it is larger than the sum of its proper divisors (26381930987).

231302042413 is a wasteful number, since it uses less digits than its factorization.

231302042413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613533311.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231302042413 its reverse (314240203132), we get a palindrome (545542245545).

The spelling of 231302042413 in words is "two hundred thirty-one billion, three hundred two million, forty-two thousand, four hundred thirteen".

Divisors: 1 13 29 377 613533269 7975932497 17792464801 231302042413