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10210000001 = 77171323053
BaseRepresentation
bin10011000001001000…
…00011110010000001
3222100112220201222012
421200210003302001
5131402230000001
64405043422305
7511004365565
oct114044036201
928315821865
1010210000001
11436a308133
121b8b384995
13c69366326
146cbdc96a5
153eb5402bb
hex260903c81

10210000001 has 4 divisors (see below), whose sum is σ = 10211330772. Its totient is φ = 10208669232.

The previous prime is 10209999991. The next prime is 10210000051. The reversal of 10210000001 is 10000001201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10000001201 = 47212765983.

It can be written as a sum of positive squares in 2 ways, for example, as 4300080625 + 5909919376 = 65575^2 + 76876^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210000001 - 214 = 10209983617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10210000001.

It is not an unprimeable number, because it can be changed into a prime (10210000051) 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, 653810 + ... + 669243.

It is an arithmetic number, because the mean of its divisors is an integer number (2552832693).

Almost surely, 210210000001 is an apocalyptic number.

It is an amenable number.

10210000001 is a deficient number, since it is larger than the sum of its proper divisors (1330771).

10210000001 is an equidigital number, since it uses as much as digits as its factorization.

10210000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330770.

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

Adding to 10210000001 its reverse (10000001201), we get a palindrome (20210001202).

The spelling of 10210000001 in words is "ten billion, two hundred ten million, one", and thus it is an aban number.

Divisors: 1 7717 1323053 10210000001