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20000202010001 = 281400371777733
BaseRepresentation
bin1001000110000101010001…
…11011111010110110010001
32121211000000110120200021122
410203002220323322312101
510110140403203310001
6110311544351532025
74132652436050213
oct443025073726621
977730013520248
1020000202010001
1164110466a3154
1222b020b22a015
13b2101b0c2b95
144d202d0045b3
1524a3b798ab1b
hex1230a8efad91

20000202010001 has 8 divisors (see below), whose sum is σ = 20071889717544. Its totient is φ = 19928517938560.

The previous prime is 20000202009943. The next prime is 20000202010031. The reversal of 20000202010001 is 10001020200002.

It can be written as a sum of positive squares in 4 ways, for example, as 5878006291600 + 14122195718401 = 2424460^2 + 3757951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20000202010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000202010031) 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, 10361531 + ... + 12139263.

It is an arithmetic number, because the mean of its divisors is an integer number (2508986214693).

Almost surely, 220000202010001 is an apocalyptic number.

It is an amenable number.

20000202010001 is a deficient number, since it is larger than the sum of its proper divisors (71687707543).

20000202010001 is a wasteful number, since it uses less digits than its factorization.

20000202010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818051.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20000202010001 its reverse (10001020200002), we get a palindrome (30001222210003).

The spelling of 20000202010001 in words is "twenty trillion, two hundred two million, ten thousand, one".

Divisors: 1 281 40037 1777733 11250397 499542973 71175096121 20000202010001