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22080474 = 23213127743
BaseRepresentation
bin101010000111…
…0101111011010
31112112210201100
41110032233122
521123033344
62105132230
7355452363
oct124165732
945483640
1022080474
1111511429
12748a076
134761390
142d0ab6a
151e12569
hex150ebda

22080474 has 48 divisors (see below), whose sum is σ = 51996672. Its totient is φ = 6731424.

The previous prime is 22080431. The next prime is 22080479. The reversal of 22080474 is 47408022.

It is not an unprimeable number, because it can be changed into a prime (22080479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29347 + ... + 30089.

It is an arithmetic number, because the mean of its divisors is an integer number (1083264).

Almost surely, 222080474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22080474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25998336).

22080474 is an abundant number, since it is smaller than the sum of its proper divisors (29916198).

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

22080474 is a wasteful number, since it uses less digits than its factorization.

22080474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22080474 is about 4698.9864864671. The cubic root of 22080474 is about 280.5451708356.

Adding to 22080474 its reverse (47408022), we get a palindrome (69488496).

The spelling of 22080474 in words is "twenty-two million, eighty thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 127 234 254 381 743 762 1143 1486 1651 2229 2286 3302 4458 4953 6687 9659 9906 13374 14859 19318 28977 29718 57954 86931 94361 173862 188722 283083 566166 849249 1226693 1698498 2453386 3680079 7360158 11040237 22080474