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105042715 = 559356077
BaseRepresentation
bin1100100001011…
…01001100011011
321022122201111221
412100231030123
5203342331330
614231232511
72413563661
oct620551433
9238581457
10105042715
1154326168
122b218737
13189bab6b
14dd44c31
15934db7a
hex642d31b

105042715 has 8 divisors (see below), whose sum is σ = 128188080. Its totient is φ = 82609632.

The previous prime is 105042703. The next prime is 105042719. The reversal of 105042715 is 517240501.

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 105042715 - 211 = 105040667 is a prime.

It is a super-2 number, since 2×1050427152 = 22067943949142450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105042715.

It is not an unprimeable number, because it can be changed into a prime (105042719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177744 + ... + 178333.

It is an arithmetic number, because the mean of its divisors is an integer number (16023510).

Almost surely, 2105042715 is an apocalyptic number.

105042715 is a deficient number, since it is larger than the sum of its proper divisors (23145365).

105042715 is an equidigital number, since it uses as much as digits as its factorization.

105042715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356141.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 105042715 is about 10249.0348326074. The cubic root of 105042715 is about 471.8333627867.

The spelling of 105042715 in words is "one hundred five million, forty-two thousand, seven hundred fifteen".

Divisors: 1 5 59 295 356077 1780385 21008543 105042715