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442419999 = 3721067619
BaseRepresentation
bin11010010111101…
…100101100011111
31010211111021010220
4122113230230133
51401224414444
6111522332423
713651336140
oct3227545437
91124437126
10442419999
1120780976a
121041ba113
13708747a8
1442a87ac7
1528c92619
hex1a5ecb1f

442419999 has 8 divisors (see below), whose sum is σ = 674163840. Its totient is φ = 252811416.

The previous prime is 442419983. The next prime is 442420009. The reversal of 442419999 is 999914244.

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

It is not a de Polignac number, because 442419999 - 24 = 442419983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442419919) 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, 10533789 + ... + 10533830.

It is an arithmetic number, because the mean of its divisors is an integer number (84270480).

Almost surely, 2442419999 is an apocalyptic number.

442419999 is a deficient number, since it is larger than the sum of its proper divisors (231743841).

442419999 is a wasteful number, since it uses less digits than its factorization.

442419999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21067629.

The product of its digits is 839808, while the sum is 51.

The square root of 442419999 is about 21033.7823274845. The cubic root of 442419999 is about 761.9823588341.

The spelling of 442419999 in words is "four hundred forty-two million, four hundred nineteen thousand, nine hundred ninety-nine".

Divisors: 1 3 7 21 21067619 63202857 147473333 442419999