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13221322130 = 259713630229
BaseRepresentation
bin11000101000000110…
…10101110110010010
31021010102020202100102
430110003111312102
5204034124302010
610023534452402
7645431245442
oct142403256622
937112222312
1013221322130
115675101005
12268b964102
1313291b3143
148d5cdc122
15525abdba5
hex3140d5d92

13221322130 has 16 divisors (see below), whose sum is σ = 24043725720. Its totient is φ = 5234007552.

The previous prime is 13221322117. The next prime is 13221322133. The reversal of 13221322130 is 3122312231.

It can be written as a sum of positive squares in 4 ways, for example, as 12140293489 + 1081028641 = 110183^2 + 32879^2 .

It is a super-3 number, since 3×132213221303 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13221322133) 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, 6814145 + ... + 6816084.

Almost surely, 213221322130 is an apocalyptic number.

13221322130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221322130 is a deficient number, since it is larger than the sum of its proper divisors (10822403590).

13221322130 is a wasteful number, since it uses less digits than its factorization.

13221322130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13630333.

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

Adding to 13221322130 its reverse (3122312231), we get a palindrome (16343634361).

The spelling of 13221322130 in words is "thirteen billion, two hundred twenty-one million, three hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 97 194 485 970 13630229 27260458 68151145 136302290 1322132213 2644264426 6610661065 13221322130