Search a number
-
+
231223130133301 = 1092697885922381
BaseRepresentation
bin110100100100101111010100…
…100010010001001100110101
31010022200201022111110102221201
4310210233110202101030311
5220301324432303231201
62135434234540212501
766463214500424035
oct6444572442211465
91108621274412851
10231223130133301
11677471a6a92a39
1221b2471253a131
139c0332b009327
14411538b3bd8c5
151bae99e4bb801
hexd24bd4891335

231223130133301 has 8 divisors (see below), whose sum is σ = 234211894745400. Its totient is φ = 228250137366720.

The previous prime is 231223130133293. The next prime is 231223130133313. The reversal of 231223130133301 is 103331031322132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22461059276100 + 208762070857201 = 4739310^2 + 14448601^2 .

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 231223130133301 - 23 = 231223130133293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231223130133301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231223130133371) 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, 3942931870 + ... + 3942990511.

It is an arithmetic number, because the mean of its divisors is an integer number (29276486843175).

Almost surely, 2231223130133301 is an apocalyptic number.

It is an amenable number.

231223130133301 is a deficient number, since it is larger than the sum of its proper divisors (2988764612099).

231223130133301 is a wasteful number, since it uses less digits than its factorization.

231223130133301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885922759.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231223130133301 its reverse (103331031322132), we get a palindrome (334554161455433).

The spelling of 231223130133301 in words is "two hundred thirty-one trillion, two hundred twenty-three billion, one hundred thirty million, one hundred thirty-three thousand, three hundred one".

Divisors: 1 109 269 29321 7885922381 859565539529 2121313120489 231223130133301