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1220312230130 = 25741425195899
BaseRepresentation
bin10001110000100000010…
…001101110100011110010
311022122211122202022110002
4101300200101232203302
5124443144412331010
62332334222110002
7154110321544610
oct21604021564362
94278748668402
101220312230130
11430593493244
1217860811b302
138b0c88830a6
14430c60886b0
1521b2307e1a5
hex11c2046e8f2

1220312230130 has 32 divisors (see below), whose sum is σ = 2571584803200. Its totient is φ = 408188062080.

The previous prime is 1220312230097. The next prime is 1220312230169. The reversal of 1220312230130 is 310322130221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212595080 + ... + 212600819.

It is an arithmetic number, because the mean of its divisors is an integer number (80362025100).

Almost surely, 21220312230130 is an apocalyptic number.

1220312230130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220312230130 is an abundant number, since it is smaller than the sum of its proper divisors (1351272573070).

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

1220312230130 is a wasteful number, since it uses less digits than its factorization.

1220312230130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425195954.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1220312230130 its reverse (310322130221), we get a palindrome (1530634360351).

Subtracting from 1220312230130 its reverse (310322130221), we obtain a palindrome (909990099909).

The spelling of 1220312230130 in words is "one trillion, two hundred twenty billion, three hundred twelve million, two hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 41 70 82 205 287 410 574 1435 2870 425195899 850391798 2125979495 2976371293 4251958990 5952742586 14881856465 17433031859 29763712930 34866063718 87165159295 122031223013 174330318590 244062446026 610156115065 1220312230130