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442031 is a prime number
BaseRepresentation
bin1101011111010101111
3211110100112
41223322233
5103121111
613250235
73520502
oct1537257
9743315
10442031
11282117
1219397b
13126275
14b7139
158ae8b
hex6beaf

442031 has 2 divisors, whose sum is σ = 442032. Its totient is φ = 442030.

The previous prime is 442027. The next prime is 442033. The reversal of 442031 is 130244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442031 - 22 = 442027 is a prime.

It is a super-2 number, since 2×4420312 = 390782809922, which contains 22 as substring.

Together with 442033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 441997 and 442015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221015 + 221016.

It is an arithmetic number, because the mean of its divisors is an integer number (221016).

2442031 is an apocalyptic number.

442031 is a deficient number, since it is larger than the sum of its proper divisors (1).

442031 is an equidigital number, since it uses as much as digits as its factorization.

442031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 442031 is about 664.8541193375. The cubic root of 442031 is about 76.1758968321.

Adding to 442031 its reverse (130244), we get a palindrome (572275).

The spelling of 442031 in words is "four hundred forty-two thousand, thirty-one".