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109213 = 1331271
BaseRepresentation
bin11010101010011101
312112210221
4122222131
511443323
62201341
7633256
oct325235
9175727
10109213
1175065
1253251
133a930
142bb2d
152255d
hex1aa9d

109213 has 8 divisors (see below), whose sum is σ = 121856. Its totient is φ = 97200.

The previous prime is 109211. The next prime is 109229. The reversal of 109213 is 312901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109213 - 21 = 109211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109211) 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, 268 + ... + 538.

It is an arithmetic number, because the mean of its divisors is an integer number (15232).

2109213 is an apocalyptic number.

109213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109213 is a deficient number, since it is larger than the sum of its proper divisors (12643).

109213 is a wasteful number, since it uses less digits than its factorization.

109213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 109213 is about 330.4739021466. The cubic root of 109213 is about 47.7996568663.

It can be divided in two parts, 1092 and 13, that multiplied together give a triangular number (14196 = T168).

The spelling of 109213 in words is "one hundred nine thousand, two hundred thirteen".

Divisors: 1 13 31 271 403 3523 8401 109213