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442530054 = 2342731667
BaseRepresentation
bin11010011000000…
…111100100000110
31010211200212010000
4122120013210012
51401241430204
6111524542130
713652305041
oct3230074406
91124625100
10442530054
1120788441a
12104251946
13708b2905
1442ab5c58
1528cb5039
hex1a607906

442530054 has 20 divisors (see below), whose sum is σ = 991595484. Its totient is φ = 147509964.

The previous prime is 442530041. The next prime is 442530061. The reversal of 442530054 is 450035244.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1365672 + ... + 1365995.

Almost surely, 2442530054 is an apocalyptic number.

442530054 is an abundant number, since it is smaller than the sum of its proper divisors (549065430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442530054 is a wasteful number, since it uses less digits than its factorization.

442530054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731681 (or 2731672 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 442530054 is about 21036.3983133996. The cubic root of 442530054 is about 762.0455363698.

Adding to 442530054 its reverse (450035244), we get a palindrome (892565298).

The spelling of 442530054 in words is "four hundred forty-two million, five hundred thirty thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 2731667 5463334 8195001 16390002 24585003 49170006 73755009 147510018 221265027 442530054