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2200031 is a prime number
BaseRepresentation
bin1000011001000111011111
311010202212122
420121013133
51030400111
6115053155
724462041
oct10310737
94122778
102200031
111272a09
128a11bb
135c04c2
14413a91
152d6cdb
hex2191df

2200031 has 2 divisors, whose sum is σ = 2200032. Its totient is φ = 2200030.

The previous prime is 2200013. The next prime is 2200043. The reversal of 2200031 is 1300022.

Together with previous prime (2200013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2200031 is a prime.

It is a super-2 number, since 2×22000312 = 9680272801922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2199991 and 2200018.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100015 + 1100016.

It is an arithmetic number, because the mean of its divisors is an integer number (1100016).

22200031 is an apocalyptic number.

2200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200031 is an equidigital number, since it uses as much as digits as its factorization.

2200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2200031 is about 1483.2501474802. The cubic root of 2200031 is about 130.0597555661.

Adding to 2200031 its reverse (1300022), we get a palindrome (3500053).

Subtracting from 2200031 its reverse (1300022), we obtain a palindrome (900009).

The spelling of 2200031 in words is "two million, two hundred thousand, thirty-one".