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101680001 = 195351579
BaseRepresentation
bin1100000111110…
…00001110000001
321002022212201222
412003320032001
5202012230001
614031204425
72343160103
oct603701601
9232285658
10101680001
1152439765
122a076715
13180b13a7
14d70b573
158dd761b
hex60f8381

101680001 has 4 divisors (see below), whose sum is σ = 107031600. Its totient is φ = 96328404.

The previous prime is 101679997. The next prime is 101680087. The reversal of 101680001 is 100086101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101680001 - 22 = 101679997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101680301) 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 3 ways as a sum of consecutive naturals, for example, 2675771 + ... + 2675808.

It is an arithmetic number, because the mean of its divisors is an integer number (26757900).

Almost surely, 2101680001 is an apocalyptic number.

It is an amenable number.

101680001 is a deficient number, since it is larger than the sum of its proper divisors (5351599).

101680001 is an equidigital number, since it uses as much as digits as its factorization.

101680001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351598.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 101680001 is about 10083.6501823496. The cubic root of 101680001 is about 466.7437529688.

The spelling of 101680001 in words is "one hundred one million, six hundred eighty thousand, one".

Divisors: 1 19 5351579 101680001