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100112011 = 113885947
BaseRepresentation
bin1011111011110…
…01011010001011
320222101012212021
411331321122023
5201112041021
613533425311
72323636516
oct575713213
9228335767
10100112011
11515686aa
122963b237
131798279c
14d41dd7d
158bc7c41
hex5f7968b

100112011 has 4 divisors (see below), whose sum is σ = 100998072. Its totient is φ = 99225952.

The previous prime is 100112009. The next prime is 100112029. The reversal of 100112011 is 110211001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110211001 = 195800579.

It is a cyclic number.

It is not a de Polignac number, because 100112011 - 21 = 100112009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100111985 and 100112003.

It is not an unprimeable number, because it can be changed into a prime (100113011) 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, 442861 + ... + 443086.

It is an arithmetic number, because the mean of its divisors is an integer number (25249518).

Almost surely, 2100112011 is an apocalyptic number.

100112011 is a deficient number, since it is larger than the sum of its proper divisors (886061).

100112011 is an equidigital number, since it uses as much as digits as its factorization.

100112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886060.

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

The square root of 100112011 is about 10005.5989825697. The cubic root of 100112011 is about 464.3321216977.

Adding to 100112011 its reverse (110211001), we get a palindrome (210323012).

The spelling of 100112011 in words is "one hundred million, one hundred twelve thousand, eleven".

Divisors: 1 113 885947 100112011