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112101001 = 117195731
BaseRepresentation
bin1101010111010…
…00011010001001
321210221022122221
412223220122021
5212144213001
615042414041
72530562035
oct653503211
9253838587
10112101001
1158307161
1231661321
131a2bc76c
1410c611c5
159c951a1
hex6ae8689

112101001 has 4 divisors (see below), whose sum is σ = 112197904. Its totient is φ = 112004100.

The previous prime is 112100987. The next prime is 112101013. The reversal of 112101001 is 100101211.

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.

It is a cyclic number.

It is not a de Polignac number, because 112101001 - 225 = 78546569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112101061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46695 + ... + 49036.

It is an arithmetic number, because the mean of its divisors is an integer number (28049476).

Almost surely, 2112101001 is an apocalyptic number.

It is an amenable number.

112101001 is a deficient number, since it is larger than the sum of its proper divisors (96903).

112101001 is an equidigital number, since it uses as much as digits as its factorization.

112101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96902.

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

The square root of 112101001 is about 10587.7760176536. The cubic root of 112101001 is about 482.1733061933.

Adding to 112101001 its reverse (100101211), we get a palindrome (212202212).

It can be divided in two parts, 11 and 2101001, that added together give a palindrome (2101012).

The spelling of 112101001 in words is "one hundred twelve million, one hundred one thousand, one".

Divisors: 1 1171 95731 112101001