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20192010001 = 13921045081
BaseRepresentation
bin10010110011100010…
…011001111100010001
31221010012211101110021
4102303202121330101
5312323123310001
613135344503441
71313243152552
oct226342317421
957105741407
1020192010001
118621954a79
123ab631ab81
131b9a3c5217
14d979c8329
157d2a47ba1
hex4b3899f11

20192010001 has 6 divisors (see below), whose sum is σ = 20338340802. Its totient is φ = 20046724560.

The previous prime is 20192009993. The next prime is 20192010029. The reversal of 20192010001 is 10001029102.

It can be written as a sum of positive squares in only one way, i.e., 18555888400 + 1636121601 = 136220^2 + 40449^2 .

It is not a de Polignac number, because 20192010001 - 23 = 20192009993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20192010031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503220 + ... + 541861.

It is an arithmetic number, because the mean of its divisors is an integer number (3389723467).

Almost surely, 220192010001 is an apocalyptic number.

It is an amenable number.

20192010001 is a deficient number, since it is larger than the sum of its proper divisors (146330801).

20192010001 is an equidigital number, since it uses as much as digits as its factorization.

20192010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045359 (or 1045220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20192010001 its reverse (10001029102), we get a palindrome (30193039103).

The spelling of 20192010001 in words is "twenty billion, one hundred ninety-two million, ten thousand, one".

Divisors: 1 139 19321 1045081 145266259 20192010001