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19142368 = 25797881
BaseRepresentation
bin100100100000…
…1011011100000
31100000112101121
41021001123200
514400023433
61522142024
7321464440
oct111013340
940015347
1019142368
11a894a43
1264b1914
133c72c5b
142784120
151a31c2d
hex12416e0

19142368 has 48 divisors (see below), whose sum is σ = 43563744. Its totient is φ = 8110080.

The previous prime is 19142341. The next prime is 19142377. The reversal of 19142368 is 86324191.

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, 21288 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (907578).

Almost surely, 219142368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19142368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21781872).

19142368 is an abundant number, since it is smaller than the sum of its proper divisors (24421376).

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

19142368 is an equidigital number, since it uses as much as digits as its factorization.

19142368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 987 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 19142368 is about 4375.1991954653. The cubic root of 19142368 is about 267.5049895712.

The spelling of 19142368 in words is "nineteen million, one hundred forty-two thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 97 112 194 224 388 679 776 881 1358 1552 1762 2716 3104 3524 5432 6167 7048 10864 12334 14096 21728 24668 28192 49336 85457 98672 170914 197344 341828 598199 683656 1196398 1367312 2392796 2734624 4785592 9571184 19142368