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19199030 = 254740849
BaseRepresentation
bin100100100111…
…1010000110110
31100010102010012
41021033100312
514403332110
61523300222
7322121564
oct111172066
940112105
1019199030
11a923574
12651a672
133c92996
14279aa34
151a43905
hex124f436

19199030 has 16 divisors (see below), whose sum is σ = 35294400. Its totient is φ = 7516032.

The previous prime is 19199023. The next prime is 19199053. The reversal of 19199030 is 3099191.

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, 19955 + ... + 20894.

It is an arithmetic number, because the mean of its divisors is an integer number (2205900).

Almost surely, 219199030 is an apocalyptic number.

19199030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19199030 is a deficient number, since it is larger than the sum of its proper divisors (16095370).

19199030 is a wasteful number, since it uses less digits than its factorization.

19199030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40903.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 19199030 is about 4381.6697730431. The cubic root of 19199030 is about 267.7686705822.

The spelling of 19199030 in words is "nineteen million, one hundred ninety-nine thousand, thirty".

Divisors: 1 2 5 10 47 94 235 470 40849 81698 204245 408490 1919903 3839806 9599515 19199030