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101200001 = 754126723
BaseRepresentation
bin1100000100000…
…11000010000001
321001102111022012
412002003002001
5201401400001
614013022305
72336120510
oct602030201
9231374265
10101200001
1152141071
1229a84995
1317c73a76
14d624677
158d402bb
hex6083081

101200001 has 8 divisors (see below), whose sum is σ = 115875264. Its totient is φ = 86579280.

The previous prime is 101199979. The next prime is 101200007. The reversal of 101200001 is 100002101.

Adding to 101200001 its reverse (100002101), we get a palindrome (201202102).

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9575 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (14484408).

Almost surely, 2101200001 is an apocalyptic number.

It is an amenable number.

101200001 is a deficient number, since it is larger than the sum of its proper divisors (14675263).

101200001 is an equidigital number, since it uses as much as digits as its factorization.

101200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27271.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 101200001 is about 10059.8211216701. The cubic root of 101200001 is about 466.0081430052.

The spelling of 101200001 in words is "one hundred one million, two hundred thousand, one".

Divisors: 1 7 541 3787 26723 187061 14457143 101200001