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105342871 = 187756123
BaseRepresentation
bin1100100011101…
…10011110010111
321100012222020211
412101312132113
5203431432441
614241510251
72416254034
oct621663627
9240188224
10105342871
1154510727
122b342387
1318a9467a
14ddc238b
1593aca81
hex6476797

105342871 has 4 divisors (see below), whose sum is σ = 105400872. Its totient is φ = 105284872.

The previous prime is 105342793. The next prime is 105342889. The reversal of 105342871 is 178243501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178243501 = 358349747.

It is a cyclic number.

It is not a de Polignac number, because 105342871 - 29 = 105342359 is a prime.

It is a super-2 number, since 2×1053428712 = 22194240941045282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105342271) 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, 26185 + ... + 29938.

It is an arithmetic number, because the mean of its divisors is an integer number (26350218).

Almost surely, 2105342871 is an apocalyptic number.

105342871 is a deficient number, since it is larger than the sum of its proper divisors (58001).

105342871 is an equidigital number, since it uses as much as digits as its factorization.

105342871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58000.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 105342871 is about 10263.6675218949. The cubic root of 105342871 is about 472.2823513519.

The spelling of 105342871 in words is "one hundred five million, three hundred forty-two thousand, eight hundred seventy-one".

Divisors: 1 1877 56123 105342871