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19097080 = 23529101163
BaseRepresentation
bin100100011011…
…0010111111000
31022221020021021
41020312113320
514342101310
61521152224
7321215422
oct110662770
938836237
1019097080
11a863a12
12648b674
133c58462
142771812
151a235da
hex12365f8

19097080 has 64 divisors (see below), whose sum is σ = 45165600. Its totient is φ = 7257600.

The previous prime is 19097063. The next prime is 19097093. The reversal of 19097080 is 8079091.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117079 + ... + 117241.

Almost surely, 219097080 is an apocalyptic number.

19097080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19097080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22582800).

19097080 is an abundant number, since it is smaller than the sum of its proper divisors (26068520).

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

19097080 is a wasteful number, since it uses less digits than its factorization.

19097080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 19097080 is about 4370.0205949171. The cubic root of 19097080 is about 267.2938639596.

The spelling of 19097080 in words is "nineteen million, ninety-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 20 29 40 58 101 116 145 163 202 232 290 326 404 505 580 652 808 815 1010 1160 1304 1630 2020 2929 3260 4040 4727 5858 6520 9454 11716 14645 16463 18908 23432 23635 29290 32926 37816 47270 58580 65852 82315 94540 117160 131704 164630 189080 329260 477427 658520 954854 1909708 2387135 3819416 4774270 9548540 19097080