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211012302001 = 1712412488353
BaseRepresentation
bin1100010010000101010…
…0000011010010110001
3202011122210212120220111
43010201110003102301
511424123122131001
6240534313541321
721150036654514
oct3044124032261
9664583776814
10211012302001
1181542a41736
1234a8b714841
1316b8a9630c7
14a2da874d7b
155750143851
hex31215034b1

211012302001 has 4 divisors (see below), whose sum is σ = 223424790372. Its totient is φ = 198599813632.

The previous prime is 211012301987. The next prime is 211012302031. The reversal of 211012302001 is 100203210112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151359124401 + 59653177600 = 389049^2 + 244240^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012302001 - 27 = 211012301873 is a prime.

It is a super-2 number, since 2×2110123020012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012302031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6206244160 + ... + 6206244193.

It is an arithmetic number, because the mean of its divisors is an integer number (55856197593).

Almost surely, 2211012302001 is an apocalyptic number.

It is an amenable number.

211012302001 is a deficient number, since it is larger than the sum of its proper divisors (12412488371).

211012302001 is a wasteful number, since it uses less digits than its factorization.

211012302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412488370.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 211012302001 its reverse (100203210112), we get a palindrome (311215512113).

The spelling of 211012302001 in words is "two hundred eleven billion, twelve million, three hundred two thousand, one".

Divisors: 1 17 12412488353 211012302001