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442057180 = 22534763697
BaseRepresentation
bin11010010110010…
…100000111011100
31010210210211110011
4122112110013130
51401131312210
6111510453004
713645265305
oct3226240734
91123724404
10442057180
11207591114
12104064164
13707785c6
14429d17ac
1528c1ed8a
hex1a5941dc

442057180 has 24 divisors (see below), whose sum is σ = 931009968. Its totient is φ = 176310528.

The previous prime is 442057177. The next prime is 442057193. The reversal of 442057180 is 81750244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24909 + ... + 38788.

It is an arithmetic number, because the mean of its divisors is an integer number (38792082).

Almost surely, 2442057180 is an apocalyptic number.

It is an amenable number.

442057180 is an abundant number, since it is smaller than the sum of its proper divisors (488952788).

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

442057180 is a wasteful number, since it uses less digits than its factorization.

442057180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64053 (or 64051 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 442057180 is about 21025.1558852723. The cubic root of 442057180 is about 761.7740068262.

The spelling of 442057180 in words is "four hundred forty-two million, fifty-seven thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 347 694 1388 1735 3470 6940 63697 127394 254788 318485 636970 1273940 22102859 44205718 88411436 110514295 221028590 442057180