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19001082 = 2323157877
BaseRepresentation
bin100100001111…
…0111011111010
31022202100120210
41020132323322
514331013312
61515131550
7320335512
oct110367372
938670523
1019001082
11a7a8881
126443bb6
133c23859
142748842
151a04e3c
hex121eefa

19001082 has 32 divisors (see below), whose sum is σ = 39952512. Its totient is φ = 6012864.

The previous prime is 19001077. The next prime is 19001089. The reversal of 19001082 is 28010091.

It is a super-2 number, since 2×190010822 = 722082234341448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19001089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21228 + ... + 22104.

It is an arithmetic number, because the mean of its divisors is an integer number (1248516).

Almost surely, 219001082 is an apocalyptic number.

19001082 is an abundant number, since it is smaller than the sum of its proper divisors (20951430).

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

19001082 is a wasteful number, since it uses less digits than its factorization.

19001082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 19001082 is about 4359.0230556858. The cubic root of 19001082 is about 266.8452300578.

Subtracting 19001082 from its reverse (28010091), we obtain a palindrome (9009009).

The spelling of 19001082 in words is "nineteen million, one thousand, eighty-two".

Divisors: 1 2 3 6 23 46 69 138 157 314 471 877 942 1754 2631 3611 5262 7222 10833 20171 21666 40342 60513 121026 137689 275378 413067 826134 3166847 6333694 9500541 19001082