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19129076 = 224782269
BaseRepresentation
bin100100011111…
…0001011110100
31022222212011022
41020332023310
514344112301
61522000312
7321410621
oct110761364
938885138
1019129076
11a885a5a
1264a6098
133c69ba5
14277d348
151a2cd1b
hex123e2f4

19129076 has 6 divisors (see below), whose sum is σ = 33475890. Its totient is φ = 9564536.

The previous prime is 19129043. The next prime is 19129081. The reversal of 19129076 is 67092191.

It can be written as a sum of positive squares in only one way, i.e., 10719076 + 8410000 = 3274^2 + 2900^2 .

It is a super-2 number, since 2×191290762 = 731843097227552, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 2391131 + ... + 2391138.

It is an arithmetic number, because the mean of its divisors is an integer number (5579315).

Almost surely, 219129076 is an apocalyptic number.

It is an amenable number.

19129076 is a deficient number, since it is larger than the sum of its proper divisors (14346814).

19129076 is a wasteful number, since it uses less digits than its factorization.

19129076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782273 (or 4782271 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 19129076 is about 4373.6799151287. The cubic root of 19129076 is about 267.4430588907.

The spelling of 19129076 in words is "nineteen million, one hundred twenty-nine thousand, seventy-six".

Divisors: 1 2 4 4782269 9564538 19129076