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19230198 = 23131012441
BaseRepresentation
bin100100101011…
…0110111110110
31100011222212120
41021112313312
514410331243
61524100410
7322311501
oct111266766
940158776
1019230198
11a944a29
126534706
133ca3c20
1427a8138
151a4cc83
hex1256df6

19230198 has 32 divisors (see below), whose sum is σ = 41846112. Its totient is φ = 5856000.

The previous prime is 19230181. The next prime is 19230287. The reversal of 19230198 is 89103291.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6658 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (1307691).

Almost surely, 219230198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19230198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20923056).

19230198 is an abundant number, since it is smaller than the sum of its proper divisors (22615914).

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

19230198 is a wasteful number, since it uses less digits than its factorization.

19230198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 19230198 is about 4385.2249657230. The cubic root of 19230198 is about 267.9134921652.

The spelling of 19230198 in words is "nineteen million, two hundred thirty thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 13 26 39 78 101 202 303 606 1313 2441 2626 3939 4882 7323 7878 14646 31733 63466 95199 190398 246541 493082 739623 1479246 3205033 6410066 9615099 19230198