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12130030220 = 2257117876643
BaseRepresentation
bin10110100110000000…
…11001001010001100
31011022100210101021112
423103000121022030
5144320241431340
65323352351152
7606410361410
oct132300311214
934270711245
1012130030220
1151650a4270
1224263a54b8
1311b4090c99
14830dc8d40
154aeda8065
hex2d301928c

12130030220 has 48 divisors (see below), whose sum is σ = 31758628608. Its totient is φ = 3780788160.

The previous prime is 12130030201. The next prime is 12130030243. The reversal of 12130030220 is 2203003121.

It is a happy number.

It is a super-2 number, since 2×121300302202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12130030195 and 12130030204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3936782 + ... + 3939861.

It is an arithmetic number, because the mean of its divisors is an integer number (661638096).

Almost surely, 212130030220 is an apocalyptic number.

12130030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130030220 is an abundant number, since it is smaller than the sum of its proper divisors (19628598388).

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

12130030220 is a wasteful number, since it uses less digits than its factorization.

12130030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876670 (or 7876668 counting only the distinct ones).

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

Adding to 12130030220 its reverse (2203003121), we get a palindrome (14333033341).

The spelling of 12130030220 in words is "twelve billion, one hundred thirty million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 7876643 15753286 31506572 39383215 55136501 78766430 86643073 110273002 157532860 173286146 220546004 275682505 346572292 433215365 551365010 606501511 866430730 1102730020 1213003022 1732861460 2426006044 3032507555 6065015110 12130030220