Search a number
-
+
1020303030001 = 4372123336681
BaseRepresentation
bin11101101100011101100…
…11001011011011110001
310121112120200011012202011
432312032303023123301
5113204040033430001
62100415402522521
7133500026442223
oct16661663133361
93545520135664
101020303030001
11363787508932
121458a9506441
13752a2692468
1437550a90413
151b818dddd51
hexed8eccb6f1

1020303030001 has 4 divisors (see below), whose sum is σ = 1020326410404. Its totient is φ = 1020279649600.

The previous prime is 1020303029989. The next prime is 1020303030031. The reversal of 1020303030001 is 1000303030201.

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 401099288976 + 619203741025 = 633324^2 + 786895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020303030001 - 229 = 1019766159089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020303030031) 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, 11624620 + ... + 11712061.

It is an arithmetic number, because the mean of its divisors is an integer number (255081602601).

Almost surely, 21020303030001 is an apocalyptic number.

It is an amenable number.

1020303030001 is a deficient number, since it is larger than the sum of its proper divisors (23380403).

1020303030001 is an equidigital number, since it uses as much as digits as its factorization.

1020303030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23380402.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 1020303030001 its reverse (1000303030201), we get a palindrome (2020606060202).

The spelling of 1020303030001 in words is "one trillion, twenty billion, three hundred three million, thirty thousand, one".

Divisors: 1 43721 23336681 1020303030001