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101217065 = 5171190789
BaseRepresentation
bin1100000100001…
…11001100101001
321001110100201012
412002013030221
5201402421230
614013233305
72336221325
oct602071451
9231410635
10101217065
1152152974
1229a92835
1317c7b771
14d62a985
158d45395
hex6087329

101217065 has 8 divisors (see below), whose sum is σ = 128605320. Its totient is φ = 76210432.

The previous prime is 101217059. The next prime is 101217071. The reversal of 101217065 is 560712101.

It is an interprime number because it is at equal distance from previous prime (101217059) and next prime (101217071).

It can be written as a sum of positive squares in 4 ways, for example, as 896809 + 100320256 = 947^2 + 10016^2 .

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 101217065 - 28 = 101216809 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101217065.

It is an unprimeable number.

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, 595310 + ... + 595479.

It is an arithmetic number, because the mean of its divisors is an integer number (16075665).

Almost surely, 2101217065 is an apocalyptic number.

It is an amenable number.

101217065 is a deficient number, since it is larger than the sum of its proper divisors (27388255).

101217065 is a wasteful number, since it uses less digits than its factorization.

101217065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190811.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 101217065 is about 10060.6692123337. The cubic root of 101217065 is about 466.0343337693.

Adding to 101217065 its reverse (560712101), we get a palindrome (661929166).

The spelling of 101217065 in words is "one hundred one million, two hundred seventeen thousand, sixty-five".

Divisors: 1 5 17 85 1190789 5953945 20243413 101217065