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105656065 = 5199106187
BaseRepresentation
bin1100100110000…
…10111100000001
321100210212212121
412103002330001
5204021443230
614252324241
72422030114
oct623027401
9240725777
10105656065
1154704a69
122b473681
1318b740a8
141006457b
15942077a
hex64c2f01

105656065 has 8 divisors (see below), whose sum is σ = 127425600. Its totient is φ = 84099312.

The previous prime is 105656063. The next prime is 105656081. The reversal of 105656065 is 560656501.

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 105656065 - 21 = 105656063 is a prime.

It is a super-2 number, since 2×1056560652 = 22326408142568450, 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 105656065.

It is not an unprimeable number, because it can be changed into a prime (105656063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52099 + ... + 54088.

It is an arithmetic number, because the mean of its divisors is an integer number (15928200).

Almost surely, 2105656065 is an apocalyptic number.

It is an amenable number.

105656065 is a deficient number, since it is larger than the sum of its proper divisors (21769535).

105656065 is a wasteful number, since it uses less digits than its factorization.

105656065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106391.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 105656065 is about 10278.9136099103. The cubic root of 105656065 is about 472.7499344917.

It can be divided in two parts, 1056 and 56065, that added together give a square (57121 = 2392).

The spelling of 105656065 in words is "one hundred five million, six hundred fifty-six thousand, sixty-five".

Divisors: 1 5 199 995 106187 530935 21131213 105656065