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2012100001 = 16765318451
BaseRepresentation
bin111011111101110…
…0011010110100001
312012020010021022021
41313323203112201
513110044200001
6531354141441
7100601365522
oct16773432641
95166107267
102012100001
1194286156a
12481a21881
13260b22a22
14151328849
15bb9a2ba1
hex77ee35a1

2012100001 has 8 divisors (see below), whose sum is σ = 2027358144. Its totient is φ = 1996880400.

The previous prime is 2012099983. The next prime is 2012100037. The reversal of 2012100001 is 1000012102.

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 2012100001 - 211 = 2012097953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012100061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99826 + ... + 118276.

It is an arithmetic number, because the mean of its divisors is an integer number (253419768).

Almost surely, 22012100001 is an apocalyptic number.

It is an amenable number.

2012100001 is a deficient number, since it is larger than the sum of its proper divisors (15258143).

2012100001 is a wasteful number, since it uses less digits than its factorization.

2012100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19271.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2012100001 is about 44856.4376762132. The cubic root of 2012100001 is about 1262.4567840123.

Adding to 2012100001 its reverse (1000012102), we get a palindrome (3012112103).

The spelling of 2012100001 in words is "two billion, twelve million, one hundred thousand, one".

Divisors: 1 167 653 18451 109051 3081317 12048503 2012100001