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9089045442 = 23210912493709
BaseRepresentation
bin10000111011011111…
…11101001111000010
3212110102122100101200
420131233331033002
5122103243423232
64101521442030
7441143416521
oct103557751702
925412570350
109089045442
113944590404
121917aa0316
13b1b0598c9
146231944b8
15382e1a77c
hex21dbfd3c2

9089045442 has 48 divisors (see below), whose sum is σ = 19894875000. Its totient is φ = 2998674432.

The previous prime is 9089045429. The next prime is 9089045473. The reversal of 9089045442 is 2445409809.

9089045442 is a `hidden beast` number, since 90 + 89 + 0 + 45 + 442 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7301531601 + 1787513841 = 85449^2 + 42279^2 .

It is a super-2 number, since 2×90890454422 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448684 + ... + 2452392.

Almost surely, 29089045442 is an apocalyptic number.

9089045442 is an abundant number, since it is smaller than the sum of its proper divisors (10805829558).

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

9089045442 is a wasteful number, since it uses less digits than its factorization.

9089045442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075 (or 5072 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 9089045442 is about 95336.4853663066. The cubic root of 9089045442 is about 2086.9213956750.

The spelling of 9089045442 in words is "nine billion, eighty-nine million, forty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 109 218 327 654 981 1249 1962 2498 3709 3747 7418 7494 11127 11241 22254 22482 33381 66762 136141 272282 404281 408423 808562 816846 1212843 1225269 2425686 2450538 3638529 4632541 7277058 9265082 13897623 27795246 41692869 83385738 504946969 1009893938 1514840907 3029681814 4544522721 9089045442