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13213101 = 3113671091
BaseRepresentation
bin110010011001…
…110110101101
3220212021222010
4302121312231
511340304401
61151111433
7220211106
oct62316655
926767863
1013213101
117505220
124512579
132978205
141a7d3ad
15125eed6
hexc99dad

13213101 has 16 divisors (see below), whose sum is σ = 19289088. Its totient is φ = 7978800.

The previous prime is 13213093. The next prime is 13213121. The reversal of 13213101 is 10131231.

It is not a de Polignac number, because 13213101 - 23 = 13213093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213121) 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, 11566 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (1205568).

Almost surely, 213213101 is an apocalyptic number.

13213101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13213101 is a deficient number, since it is larger than the sum of its proper divisors (6075987).

13213101 is a wasteful number, since it uses less digits than its factorization.

13213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 13213101 is about 3634.9829435638. The cubic root of 13213101 is about 236.4113111247.

Adding to 13213101 its reverse (10131231), we get a palindrome (23344332).

The spelling of 13213101 in words is "thirteen million, two hundred thirteen thousand, one hundred one".

Divisors: 1 3 11 33 367 1091 1101 3273 4037 12001 12111 36003 400397 1201191 4404367 13213101