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108149 = 831303
BaseRepresentation
bin11010011001110101
312111100112
4122121311
511430044
62152405
7630206
oct323165
9174315
10108149
1174288
1252705
133a2c2
142b5ad
152209e
hex1a675

108149 has 4 divisors (see below), whose sum is σ = 109536. Its totient is φ = 106764.

The previous prime is 108139. The next prime is 108161. The reversal of 108149 is 941801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108149 - 212 = 104053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (27384).

2108149 is an apocalyptic number.

It is an amenable number.

108149 is a deficient number, since it is larger than the sum of its proper divisors (1387).

108149 is an equidigital number, since it uses as much as digits as its factorization.

108149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 108149 is about 328.8601526485. The cubic root of 108149 is about 47.6439217506.

The spelling of 108149 in words is "one hundred eight thousand, one hundred forty-nine".

Divisors: 1 83 1303 108149