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13306161 = 3113113007
BaseRepresentation
bin110010110000…
…100100110001
3221001000121210
4302300210301
511401244121
61153110333
7221046321
oct62604461
927030553
1013306161
117569130
1245583a9
1329ab68b
141aa5281
15127c876
hexcb0931

13306161 has 16 divisors (see below), whose sum is σ = 19980288. Its totient is φ = 7803600.

The previous prime is 13306159. The next prime is 13306219. The reversal of 13306161 is 16160331.

It is not a de Polignac number, because 13306161 - 21 = 13306159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13306151) 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, 5481 + ... + 7526.

It is an arithmetic number, because the mean of its divisors is an integer number (1248768).

Almost surely, 213306161 is an apocalyptic number.

13306161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13306161 is a deficient number, since it is larger than the sum of its proper divisors (6674127).

13306161 is a wasteful number, since it uses less digits than its factorization.

13306161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13052.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13306161 is about 3647.7610941508. The cubic root of 13306161 is about 236.9650289336.

Adding to 13306161 its reverse (16160331), we get a palindrome (29466492).

The spelling of 13306161 in words is "thirteen million, three hundred six thousand, one hundred sixty-one".

Divisors: 1 3 11 31 33 93 341 1023 13007 39021 143077 403217 429231 1209651 4435387 13306161