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112012001 = 234870087
BaseRepresentation
bin1101010110100…
…10101011100001
321210202210120122
412223102223201
5212133341001
615040450025
72530041413
oct653225341
9253683518
10112012001
1158256302
1231619915
131a28b0ba
1410c3a9b3
159c78b1b
hex6ad2ae1

112012001 has 4 divisors (see below), whose sum is σ = 116882112. Its totient is φ = 107141892.

The previous prime is 112011979. The next prime is 112012009. The reversal of 112012001 is 100210211.

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: 100210211 = 257389923.

It is a cyclic number.

It is not a de Polignac number, because 112012001 - 214 = 111995617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112012001.

It is not an unprimeable number, because it can be changed into a prime (112012009) 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, 2435021 + ... + 2435066.

It is an arithmetic number, because the mean of its divisors is an integer number (29220528).

Almost surely, 2112012001 is an apocalyptic number.

It is an amenable number.

112012001 is a deficient number, since it is larger than the sum of its proper divisors (4870111).

112012001 is an equidigital number, since it uses as much as digits as its factorization.

112012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870110.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 112012001 is about 10583.5722230256. The cubic root of 112012001 is about 482.0456689566.

Adding to 112012001 its reverse (100210211), we get a palindrome (212222212).

The spelling of 112012001 in words is "one hundred twelve million, twelve thousand, one".

Divisors: 1 23 4870087 112012001