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2112031 = 4349117
BaseRepresentation
bin1000000011101000011111
310222022011101
420003220133
51020041111
6113133531
723644345
oct10035037
93868141
102112031
111212889
1285a2a7
1358c42c
143cd995
152babc1
hex203a1f

2112031 has 4 divisors (see below), whose sum is σ = 2161192. Its totient is φ = 2062872.

The previous prime is 2112017. The next prime is 2112053. The reversal of 2112031 is 1302112.

Adding to 2112031 its reverse (1302112), we get a palindrome (3414143).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112031 - 213 = 2103839 is a prime.

It is a super-2 number, since 2×21120312 = 8921349889922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111999 and 2112017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112631) 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, 24516 + ... + 24601.

It is an arithmetic number, because the mean of its divisors is an integer number (540298).

22112031 is an apocalyptic number.

2112031 is a deficient number, since it is larger than the sum of its proper divisors (49161).

2112031 is an equidigital number, since it uses as much as digits as its factorization.

2112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49160.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2112031 is about 1453.2828355141. The cubic root of 2112031 is about 128.3020009339.

The spelling of 2112031 in words is "two million, one hundred twelve thousand, thirty-one".

Divisors: 1 43 49117 2112031