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100000111111 = 446992237189
BaseRepresentation
bin101110100100001111…
…0001001101000000111
3100120010011211222122221
41131020132021220013
53114300012023421
6113534525233211
710140044630305
oct1351036115007
9316104758587
10100000111111
113945650162a
1217469a02807
13957884b1a4
144ba908d275
15290425c841
hex1748789a07

100000111111 has 4 divisors (see below), whose sum is σ = 100002393000. Its totient is φ = 99997829224.

The previous prime is 100000111061. The next prime is 100000111151. The reversal of 100000111111 is 111111000001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111111000001 = 831338686747.

It is a cyclic number.

It is not a de Polignac number, because 100000111111 - 27 = 100000110983 is a prime.

It is a Duffinian number.

100000111111 is a modest number, since divided by 111111 gives 100000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 100000111094 and 100000111103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000111151) 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 3 ways as a sum of consecutive naturals, for example, 1073896 + ... + 1163293.

It is an arithmetic number, because the mean of its divisors is an integer number (25000598250).

Almost surely, 2100000111111 is an apocalyptic number.

100000111111 is a deficient number, since it is larger than the sum of its proper divisors (2281889).

100000111111 is an equidigital number, since it uses as much as digits as its factorization.

100000111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281888.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 100000111111 its reverse (111111000001), we get a palindrome (211111111112).

It can be divided in two parts, 1000001 and 11111, that multiplied together give a palindrome (11111011111).

The spelling of 100000111111 in words is "one hundred billion, one hundred eleven thousand, one hundred eleven".

Divisors: 1 44699 2237189 100000111111