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442130041 = 1993077237
BaseRepresentation
bin11010010110100…
…101111001111001
31010210221112101201
4122112211321321
51401141130131
6111512214201
713646020603
oct3226457171
91123845351
10442130041
11207630931
1210409a361
13707a2812
1442a10173
1528c36761
hex1a5a5e79

442130041 has 8 divisors (see below), whose sum is σ = 445860800. Its totient is φ = 438414768.

The previous prime is 442130023. The next prime is 442130069. The reversal of 442130041 is 140031244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442130041 - 215 = 442097273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57475 + ... + 64711.

It is an arithmetic number, because the mean of its divisors is an integer number (55732600).

Almost surely, 2442130041 is an apocalyptic number.

It is an amenable number.

442130041 is a deficient number, since it is larger than the sum of its proper divisors (3730759).

442130041 is a wasteful number, since it uses less digits than its factorization.

442130041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 442130041 is about 21026.8885239828. Note that the first 3 decimals coincide. The cubic root of 442130041 is about 761.8158570433.

Adding to 442130041 its reverse (140031244), we get a palindrome (582161285).

The spelling of 442130041 in words is "four hundred forty-two million, one hundred thirty thousand, forty-one".

Divisors: 1 199 307 7237 61093 1440163 2221759 442130041