Search a number
-
+
103221322220 = 22515527332393
BaseRepresentation
bin110000000100001111…
…0000110000111101100
3100212102200010110121002
41200020132012013230
53142344124302340
6115230315055432
710312630522322
oct1401036060754
9325380113532
10103221322220
113a859822175
1218008741578
139970005473
144dd2bd9d12
152a41e4a715
hex18087861ec

103221322220 has 24 divisors (see below), whose sum is σ = 216779389344. Its totient is φ = 41285745536.

The previous prime is 103221322213. The next prime is 103221322223. The reversal of 103221322220 is 22223122301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 103221322192 and 103221322201.

It is not an unprimeable number, because it can be changed into a prime (103221322223) 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, 144344 + ... + 476736.

It is an arithmetic number, because the mean of its divisors is an integer number (9032474556).

Almost surely, 2103221322220 is an apocalyptic number.

103221322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103221322220 is an abundant number, since it is smaller than the sum of its proper divisors (113558067124).

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

103221322220 is a wasteful number, since it uses less digits than its factorization.

103221322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347929 (or 347927 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 103221322220 its reverse (22223122301), we get a palindrome (125444444521).

The spelling of 103221322220 in words is "one hundred three billion, two hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15527 31054 62108 77635 155270 310540 332393 664786 1329572 1661965 3323930 6647860 5161066111 10322132222 20644264444 25805330555 51610661110 103221322220