Search a number
-
+
19041087 = 313488233
BaseRepresentation
bin100100010100…
…0101100111111
31022211101110110
41020220230333
514333303322
61520041103
7320563242
oct110505477
938741413
1019041087
11a82593a
126463193
133c38b20
142759259
151a11c0c
hex1228b3f

19041087 has 8 divisors (see below), whose sum is σ = 27341104. Its totient is φ = 11717568.

The previous prime is 19041067. The next prime is 19041109. The reversal of 19041087 is 78014091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19041087 - 223 = 10652479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19041017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 244078 + ... + 244155.

It is an arithmetic number, because the mean of its divisors is an integer number (3417638).

Almost surely, 219041087 is an apocalyptic number.

19041087 is a deficient number, since it is larger than the sum of its proper divisors (8300017).

19041087 is a wasteful number, since it uses less digits than its factorization.

19041087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488249.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 19041087 is about 4363.6094004849. The cubic root of 19041087 is about 267.0323713364.

The spelling of 19041087 in words is "nineteen million, forty-one thousand, eighty-seven".

Divisors: 1 3 13 39 488233 1464699 6347029 19041087