Search a number
-
+
19193093 = 431572843
BaseRepresentation
bin100100100110…
…1110100000101
31100010002222022
41021031310011
514403134333
61523212525
7322065353
oct111156405
940102868
1019193093
11a91a067
126517145
133c9007a
1427987d3
151a41c98
hex124dd05

19193093 has 8 divisors (see below), whose sum is σ = 19771488. Its totient is φ = 18620784.

The previous prime is 19193089. The next prime is 19193147. The reversal of 19193093 is 39039191.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 19193093 - 22 = 19193089 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 (19193393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5330 + ... + 8172.

It is an arithmetic number, because the mean of its divisors is an integer number (2471436).

Almost surely, 219193093 is an apocalyptic number.

It is an amenable number.

19193093 is a deficient number, since it is larger than the sum of its proper divisors (578395).

19193093 is a wasteful number, since it uses less digits than its factorization.

19193093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 19193093 is about 4380.9922392079. The cubic root of 19193093 is about 267.7410666443.

The spelling of 19193093 in words is "nineteen million, one hundred ninety-three thousand, ninety-three".

Divisors: 1 43 157 2843 6751 122249 446351 19193093