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442431201 = 3538127407
BaseRepresentation
bin11010010111101…
…111011011100001
31010211111211111210
4122113233123201
51401230244301
6111522500333
713651413612
oct3227573341
91124454453
10442431201
11207817123
121042046a9
1370879914
1442a8bc09
1528c95ad6
hex1a5ef6e1

442431201 has 8 divisors (see below), whose sum is σ = 590039424. Its totient is φ = 294888560.

The previous prime is 442431179. The next prime is 442431211. The reversal of 442431201 is 102134244.

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 442431201 - 29 = 442430689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442431211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2440 + ... + 29846.

It is an arithmetic number, because the mean of its divisors is an integer number (73754928).

Almost surely, 2442431201 is an apocalyptic number.

It is an amenable number.

442431201 is a deficient number, since it is larger than the sum of its proper divisors (147608223).

442431201 is a wasteful number, since it uses less digits than its factorization.

442431201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32791.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442431201 is about 21034.0486117152. The cubic root of 442431201 is about 761.9887898682.

Adding to 442431201 its reverse (102134244), we get a palindrome (544565445).

The spelling of 442431201 in words is "four hundred forty-two million, four hundred thirty-one thousand, two hundred one".

Divisors: 1 3 5381 16143 27407 82221 147477067 442431201