Search a number
-
+
13031230312222 = 27819698332319
BaseRepresentation
bin1011110110100001000111…
…0110101000111100011110
31201010202212211211202201221
42331220101312220330132
53202000424424442342
643414244202323554
72513322015024343
oct275502166507436
951122784752657
1013031230312222
114174571873591
1215656587b95ba
13736abbbc8ac5
14330a01a107ca
15178e8b2d7a67
hexbda11da8f1e

13031230312222 has 8 divisors (see below), whose sum is σ = 19546872811200. Its totient is φ = 6515606041824.

The previous prime is 13031230312193. The next prime is 13031230312229. The reversal of 13031230312222 is 22221303213031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031230312229) 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, 2602222 + ... + 5730097.

It is an arithmetic number, because the mean of its divisors is an integer number (2443359101400).

Almost surely, 213031230312222 is an apocalyptic number.

13031230312222 is a deficient number, since it is larger than the sum of its proper divisors (6515642498978).

13031230312222 is an equidigital number, since it uses as much as digits as its factorization.

13031230312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114290.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13031230312222 its reverse (22221303213031), we get a palindrome (35252533525253).

The spelling of 13031230312222 in words is "thirteen trillion, thirty-one billion, two hundred thirty million, three hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 781969 1563938 8332319 16664638 6515615156111 13031230312222