Search a number
-
+
12130300220 = 2251537739443
BaseRepresentation
bin10110100110000010…
…11011000100111100
31011022101022002122112
423103001123010330
5144320324101340
65323402233152
7606412564523
oct132301330474
934271262575
1012130300220
115165269105
1224264b57b8
1311b4156b4c
148310594ba
154aee0d065
hex2d305b13c

12130300220 has 24 divisors (see below), whose sum is σ = 25475932944. Its totient is φ = 4851681536.

The previous prime is 12130300159. The next prime is 12130300223. The reversal of 12130300220 is 2200303121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12130300195 and 12130300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130300223) 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, 287819 + ... + 327261.

It is an arithmetic number, because the mean of its divisors is an integer number (1061497206).

Almost surely, 212130300220 is an apocalyptic number.

12130300220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130300220 is an abundant number, since it is smaller than the sum of its proper divisors (13345632724).

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

12130300220 is a wasteful number, since it uses less digits than its factorization.

12130300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54829 (or 54827 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12130300220 its reverse (2200303121), we get a palindrome (14330603341).

The spelling of 12130300220 in words is "twelve billion, one hundred thirty million, three hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15377 30754 39443 61508 76885 78886 153770 157772 197215 307540 394430 788860 606515011 1213030022 2426060044 3032575055 6065150110 12130300220