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20010201000001 = 79734213733841
BaseRepresentation
bin1001000110010111111001…
…11011000010100001000001
32121211221211022102222221121
410203023330323002201001
510110321342424000001
6110320320500552241
74133455302054442
oct443137473024101
977757738388847
1020010201000001
116415307888353
1222b213b9b2681
13b21c52818704
144d26dad832c9
1524a7a06e96a1
hex1232fcec2841

20010201000001 has 8 divisors (see below), whose sum is σ = 20035920810024. Its totient is φ = 19984482727680.

The previous prime is 20010200999963. The next prime is 20010201000011. The reversal of 20010201000001 is 10000010201002.

It can be written as a sum of positive squares in 4 ways, for example, as 2192946339600 + 17817254660401 = 1480860^2 + 4221049^2 .

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 20010201000001 - 29 = 20010200999489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010201000011) 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, 26900841 + ... + 27634681.

It is an arithmetic number, because the mean of its divisors is an integer number (2504490101253).

Almost surely, 220010201000001 is an apocalyptic number.

It is an amenable number.

20010201000001 is a deficient number, since it is larger than the sum of its proper divisors (25719810023).

20010201000001 is an equidigital number, since it uses as much as digits as its factorization.

20010201000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768851.

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

Adding to 20010201000001 its reverse (10000010201002), we get a palindrome (30010211201003).

The spelling of 20010201000001 in words is "twenty trillion, ten billion, two hundred one million, one", and thus it is an aban number.

Divisors: 1 797 34213 733841 27267761 584871277 25106902133 20010201000001