Search a number
-
+
102011010001 = 565118051851
BaseRepresentation
bin101111100000001010…
…1000111101111010001
3100202022022201020100121
41133000111013233101
53132404304310001
6114510241550241
710240633164265
oct1370025075721
9322268636317
10102011010001
113a29861273a
121792b345381
1398093402a4
144d1a1840a5
1529c0a746a1
hex17c0547bd1

102011010001 has 4 divisors (see below), whose sum is σ = 102029067504. Its totient is φ = 101992952500.

The previous prime is 102011009917. The next prime is 102011010011. The reversal of 102011010001 is 100010110201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100010110201 = 174157444061.

It is a cyclic number.

It is not a de Polignac number, because 102011010001 - 219 = 102010485713 is a prime.

It is a super-2 number, since 2×1020110100012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011010011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9020275 + ... + 9031576.

It is an arithmetic number, because the mean of its divisors is an integer number (25507266876).

Almost surely, 2102011010001 is an apocalyptic number.

It is an amenable number.

102011010001 is a deficient number, since it is larger than the sum of its proper divisors (18057503).

102011010001 is an equidigital number, since it uses as much as digits as its factorization.

102011010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18057502.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 102011010001 its reverse (100010110201), we get a palindrome (202021120202).

The spelling of 102011010001 in words is "one hundred two billion, eleven million, ten thousand, one".

Divisors: 1 5651 18051851 102011010001