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2196100001 = 17162179693
BaseRepresentation
bin1000001011100101…
…1101001110100001
312200001100102212002
42002321131032201
513444200200001
61001530013345
7105264353624
oct20271351641
95601312762
102196100001
11a27706487
12513577255
1328cc97474
1416b943dbb
15ccbeb46b
hex82e5d3a1

2196100001 has 8 divisors (see below), whose sum is σ = 2326746024. Its totient is φ = 2065616640.

The previous prime is 2196099991. The next prime is 2196100003. The reversal of 2196100001 is 1000016912.

It can be written as a sum of positive squares in 4 ways, for example, as 1611621025 + 584478976 = 40145^2 + 24176^2 .

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 2196100001 - 210 = 2196098977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2196100003) 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, 12290 + ... + 67403.

It is an arithmetic number, because the mean of its divisors is an integer number (290843253).

Almost surely, 22196100001 is an apocalyptic number.

It is an amenable number.

2196100001 is a deficient number, since it is larger than the sum of its proper divisors (130646023).

2196100001 is a wasteful number, since it uses less digits than its factorization.

2196100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81331.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2196100001 is about 46862.5650279624. The cubic root of 2196100001 is about 1299.8224611593.

Adding to 2196100001 its reverse (1000016912), we get a palindrome (3196116913).

The spelling of 2196100001 in words is "two billion, one hundred ninety-six million, one hundred thousand, one".

Divisors: 1 17 1621 27557 79693 1354781 129182353 2196100001