Search a number
-
+
19129136 = 241391967
BaseRepresentation
bin100100011111…
…0001100110000
31022222212020112
41020332030300
514344113021
61522000452
7321411035
oct110761460
938885215
1019129136
11a886004
1264a6128
133c69c20
14277d38c
151a2cd5b
hex123e330

19129136 has 20 divisors (see below), whose sum is σ = 39914112. Its totient is φ = 8828736.

The previous prime is 19129127. The next prime is 19129147. The reversal of 19129136 is 63192191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45776 + ... + 46191.

Almost surely, 219129136 is an apocalyptic number.

19129136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19129136 is an abundant number, since it is smaller than the sum of its proper divisors (20784976).

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

19129136 is a wasteful number, since it uses less digits than its factorization.

19129136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91988 (or 91982 counting only the distinct ones).

The product of its digits is 2916, while the sum is 32.

The square root of 19129136 is about 4373.6867743358. The cubic root of 19129136 is about 267.4433385098.

The spelling of 19129136 in words is "nineteen million, one hundred twenty-nine thousand, one hundred thirty-six".

Divisors: 1 2 4 8 13 16 26 52 104 208 91967 183934 367868 735736 1195571 1471472 2391142 4782284 9564568 19129136