Search a number
-
+
13021032222 = 23211149441361
BaseRepresentation
bin11000010000001110…
…10010111100011110
31020121110100222020200
430020013102330132
5203131341012342
65552021524330
7640446643032
oct141007227436
936543328220
1013021032222
115582040260
1226348736a6
1312c6856bc3
148b74821c2
1551320894c
hex3081d2f1e

13021032222 has 48 divisors (see below), whose sum is σ = 30983612400. Its totient is φ = 3919276800.

The previous prime is 13021032203. The next prime is 13021032223. The reversal of 13021032222 is 22223012031.

13021032222 is a `hidden beast` number, since 130 + 210 + 322 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13021032195 and 13021032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021032223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191179 + ... + 250182.

It is an arithmetic number, because the mean of its divisors is an integer number (645491925).

Almost surely, 213021032222 is an apocalyptic number.

13021032222 is an abundant number, since it is smaller than the sum of its proper divisors (17962580178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13021032222 is a wasteful number, since it uses less digits than its factorization.

13021032222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441529 (or 441526 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13021032222 its reverse (22223012031), we get a palindrome (35244044253).

The spelling of 13021032222 in words is "thirteen billion, twenty-one million, thirty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 149 198 298 447 894 1341 1639 2682 3278 4917 9834 14751 29502 441361 882722 1324083 2648166 3972249 4854971 7944498 9709942 14564913 29129826 43694739 65762789 87389478 131525578 197288367 394576734 591865101 723390679 1183730202 1446781358 2170172037 4340344074 6510516111 13021032222