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1320130212 = 223671641953
BaseRepresentation
bin100111010101111…
…1001011010100100
310102000001120012120
41032223321122210
510200423131322
6334554545540
744466631062
oct11653713244
93360046176
101320130212
116181a7405
1230a1382b0
1318066574b
14c7481032
157ad69a5c
hex4eaf96a4

1320130212 has 24 divisors (see below), whose sum is σ = 3126280416. Its totient is φ = 433475328.

The previous prime is 1320130187. The next prime is 1320130247. The reversal of 1320130212 is 2120310231.

It is a junction number, because it is equal to n+sod(n) for n = 1320130191 and 1320130200.

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 7 ways as a sum of consecutive naturals, for example, 820173 + ... + 821780.

It is an arithmetic number, because the mean of its divisors is an integer number (130261684).

Almost surely, 21320130212 is an apocalyptic number.

1320130212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320130212 is an abundant number, since it is smaller than the sum of its proper divisors (1806150204).

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

1320130212 is a wasteful number, since it uses less digits than its factorization.

1320130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642027 (or 1642025 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1320130212 is about 36333.5961886516. The cubic root of 1320130212 is about 1096.9973793829.

Adding to 1320130212 its reverse (2120310231), we get a palindrome (3440440443).

The spelling of 1320130212 in words is "one billion, three hundred twenty million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 1641953 3283906 4925859 6567812 9851718 19703436 110010851 220021702 330032553 440043404 660065106 1320130212