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105182807 = 751140057
BaseRepresentation
bin1100100010011…
…11011001010111
321022220211200112
412101033121113
5203411322212
614234233235
72415016262
oct621173127
9238824615
10105182807
1154411444
122b28581b
1318a39862
14dd7dcd9
15937a422
hex644f657

105182807 has 4 divisors (see below), whose sum is σ = 105323616. Its totient is φ = 105042000.

The previous prime is 105182801. The next prime is 105182821. The reversal of 105182807 is 708281501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708281501 = 4219167879.

It is a cyclic number.

It is not a de Polignac number, because 105182807 - 214 = 105166423 is a prime.

It is a super-2 number, since 2×1051828072 = 22126845776798498, 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 (105182801) 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, 69278 + ... + 70779.

It is an arithmetic number, because the mean of its divisors is an integer number (26330904).

Almost surely, 2105182807 is an apocalyptic number.

105182807 is a deficient number, since it is larger than the sum of its proper divisors (140809).

105182807 is an equidigital number, since it uses as much as digits as its factorization.

105182807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140808.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 105182807 is about 10255.8669550653. The cubic root of 105182807 is about 472.0430257987.

The spelling of 105182807 in words is "one hundred five million, one hundred eighty-two thousand, eight hundred seven".

Divisors: 1 751 140057 105182807