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211320013313 = 31137160131079
BaseRepresentation
bin1100010011001110100…
…1111000001000000001
3202012110020212221110202
43010303221320020001
511430240410411223
6241025025134545
721160464322163
oct3046351701001
9665406787422
10211320013313
1181690702802
1234b5678a455
1316c09630ac6
14a329694933
15576c177428
hex3133a78201

211320013313 has 16 divisors (see below), whose sum is σ = 219873346560. Its totient is φ = 202877184000.

The previous prime is 211320013301. The next prime is 211320013349. The reversal of 211320013313 is 313310023112.

It is a cyclic number.

It is not a de Polignac number, because 211320013313 - 210 = 211320012289 is a prime.

It is a super-2 number, since 2×2113200133132 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211320013393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6783908 + ... + 6814986.

It is an arithmetic number, because the mean of its divisors is an integer number (13742084160).

Almost surely, 2211320013313 is an apocalyptic number.

It is an amenable number.

211320013313 is a deficient number, since it is larger than the sum of its proper divisors (8553333247).

211320013313 is a wasteful number, since it uses less digits than its factorization.

211320013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32848.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 211320013313 its reverse (313310023112), we get a palindrome (524630036425).

The spelling of 211320013313 in words is "two hundred eleven billion, three hundred twenty million, thirteen thousand, three hundred thirteen".

Divisors: 1 31 137 1601 4247 31079 49631 219337 963449 4257823 6799447 49757479 131992513 1542481849 6816774623 211320013313