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199434184 = 23198571531
BaseRepresentation
bin10111110001100…
…01111111001000
3111220021022021021
423320301333020
5402023343214
631442322224
74641106525
oct1370617710
9456238237
10199434184
11a2636944
1256959374
13324198c1
141c6b614c
1512796924
hexbe31fc8

199434184 has 32 divisors (see below), whose sum is σ = 394336800. Its totient is φ = 94296960.

The previous prime is 199434167. The next prime is 199434187. The reversal of 199434184 is 481434991.

It is a self number, because there is not a number n which added to its sum of digits gives 199434184.

It is not an unprimeable number, because it can be changed into a prime (199434187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129499 + ... + 131029.

It is an arithmetic number, because the mean of its divisors is an integer number (12323025).

Almost surely, 2199434184 is an apocalyptic number.

It is an amenable number.

199434184 is a deficient number, since it is larger than the sum of its proper divisors (194902616).

199434184 is a wasteful number, since it uses less digits than its factorization.

199434184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2409 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 199434184 is about 14122.1168384913. The cubic root of 199434184 is about 584.2515414181.

The spelling of 199434184 in words is "one hundred ninety-nine million, four hundred thirty-four thousand, one hundred eighty-four".

Divisors: 1 2 4 8 19 38 76 152 857 1531 1714 3062 3428 6124 6856 12248 16283 29089 32566 58178 65132 116356 130264 232712 1312067 2624134 5248268 10496536 24929273 49858546 99717092 199434184