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348105189 = 3116035063
BaseRepresentation
bin10100101111111…
…010100111100101
3220021000120112210
4110233322213211
51203103331224
654313034033
711424562635
oct2457724745
9807016483
10348105189
11169550643
12986b5919
1357171903
14343366c5
1520862429
hex14bfa9e5

348105189 has 4 divisors (see below), whose sum is σ = 464140256. Its totient is φ = 232070124.

The previous prime is 348105179. The next prime is 348105193. The reversal of 348105189 is 981501843.

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 not a de Polignac number, because 348105189 - 25 = 348105157 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 (348105179) 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, 58017529 + ... + 58017534.

It is an arithmetic number, because the mean of its divisors is an integer number (116035064).

Almost surely, 2348105189 is an apocalyptic number.

It is an amenable number.

348105189 is a deficient number, since it is larger than the sum of its proper divisors (116035067).

348105189 is a wasteful number, since it uses less digits than its factorization.

348105189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116035066.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 348105189 is about 18657.5772542954. The cubic root of 348105189 is about 703.4558285381.

The spelling of 348105189 in words is "three hundred forty-eight million, one hundred five thousand, one hundred eighty-nine".

Divisors: 1 3 116035063 348105189