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1213113320330 = 25977417168617
BaseRepresentation
bin10001101001110011001…
…100000100001110001010
311021222020221201210201012
4101221303030010032022
5124333424002222310
62325144020323522
7153434036041442
oct21516314041612
94258227653635
101213113320330
1142852993080a
121771392435a2
138a51c2b5152
1442a01d51122
1521851073c05
hex11a7330438a

1213113320330 has 32 divisors (see below), whose sum is σ = 2206425883536. Its totient is φ = 480175202304.

The previous prime is 1213113320311. The next prime is 1213113320347. The reversal of 1213113320330 is 330233113121.

It can be written as a sum of positive squares in 8 ways, for example, as 635083080241 + 578030240089 = 796921^2 + 760283^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1213113320296 and 1213113320305.

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, 7110182 + ... + 7278798.

Almost surely, 21213113320330 is an apocalyptic number.

1213113320330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213113320330 is a deficient number, since it is larger than the sum of its proper divisors (993312563206).

1213113320330 is a wasteful number, since it uses less digits than its factorization.

1213113320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176138.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1213113320330 its reverse (330233113121), we get a palindrome (1543346433451).

The spelling of 1213113320330 in words is "one trillion, two hundred thirteen billion, one hundred thirteen million, three hundred twenty thousand, three hundred thirty".

Divisors: 1 2 5 10 97 194 485 970 7417 14834 37085 74170 168617 337234 719449 843085 1438898 1686170 3597245 7194490 16355849 32711698 81779245 163558490 1250632289 2501264578 6253161445 12506322890 121311332033 242622664066 606556660165 1213113320330