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800101001 = 7196015797
BaseRepresentation
bin101111101100001…
…001001010001001
32001202112100020102
4233230021022021
53114311213001
6211220535145
725553513660
oct5754111211
92052470212
10800101001
113806aa7a7
121a3b514b5
13c99b9b5b
1478393dd7
154a396e6b
hex2fb09289

800101001 has 8 divisors (see below), whose sum is σ = 962527680. Its totient is φ = 649705968.

The previous prime is 800100919. The next prime is 800101037. The reversal of 800101001 is 100101008.

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 800101001 - 210 = 800099977 is a prime.

It is a super-2 number, since 2×8001010012 = 1280323223602404002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (800100001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3007766 + ... + 3008031.

It is an arithmetic number, because the mean of its divisors is an integer number (120315960).

Almost surely, 2800101001 is an apocalyptic number.

It is an amenable number.

800101001 is a deficient number, since it is larger than the sum of its proper divisors (162426679).

800101001 is a wasteful number, since it uses less digits than its factorization.

800101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015823.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 800101001 is about 28286.0566534114. The cubic root of 800101001 is about 928.3568321714.

Adding to 800101001 its reverse (100101008), we get a palindrome (900202009).

The spelling of 800101001 in words is "eight hundred million, one hundred one thousand, one".

Divisors: 1 7 19 133 6015797 42110579 114300143 800101001