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10020010001 = 171361433073
BaseRepresentation
bin10010101010011110…
…10011100000010001
3221212022102020200112
421111033103200101
5131010110310001
64334135331105
7503206452101
oct112517234021
927768366615
1010020010001
114282041901
121b37820a95
13c38ba5301
146b0a91201
153d9a11cbb
hex2553d3811

10020010001 has 8 divisors (see below), whose sum is σ = 10617242184. Its totient is φ = 9423646720.

The previous prime is 10020009949. The next prime is 10020010019. The reversal of 10020010001 is 10001002001.

It is a happy number.

It is a Cunningham number, because it is equal to 1001002+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1702387600 + 8317622401 = 41260^2 + 91201^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-10020010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020010201) 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, 193400 + ... + 239673.

It is an arithmetic number, because the mean of its divisors is an integer number (1327155273).

Almost surely, 210020010001 is an apocalyptic number.

It is an amenable number.

10020010001 is a deficient number, since it is larger than the sum of its proper divisors (597232183).

10020010001 is a wasteful number, since it uses less digits than its factorization.

10020010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434451.

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

Adding to 10020010001 its reverse (10001002001), we get a palindrome (20021012002).

The spelling of 10020010001 in words is "ten billion, twenty million, ten thousand, one".

Divisors: 1 17 1361 23137 433073 7362241 589412353 10020010001