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442432027 = 716231437
BaseRepresentation
bin11010010111101…
…111101000011011
31010211111212122101
4122113233220123
51401230311102
6111522504231
713651416202
oct3227575033
91124455571
10442432027
11207817804
12104205077
137087a0cb
1442a8c239
1528c95e87
hex1a5efa1b

442432027 has 4 divisors (see below), whose sum is σ = 448663536. Its totient is φ = 436200520.

The previous prime is 442432019. The next prime is 442432037. The reversal of 442432027 is 720234244.

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 442432027 - 23 = 442432019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442431986 and 442432004.

It is not an unprimeable number, because it can be changed into a prime (442432037) 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, 3115648 + ... + 3115789.

It is an arithmetic number, because the mean of its divisors is an integer number (112165884).

Almost surely, 2442432027 is an apocalyptic number.

442432027 is a deficient number, since it is larger than the sum of its proper divisors (6231509).

442432027 is an equidigital number, since it uses as much as digits as its factorization.

442432027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231508.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 442432027 is about 21034.0682465376. The cubic root of 442432027 is about 761.9892640680.

The spelling of 442432027 in words is "four hundred forty-two million, four hundred thirty-two thousand, twenty-seven".

Divisors: 1 71 6231437 442432027