Search a number
-
+
190381541 = 7130720809
BaseRepresentation
bin10110101100011…
…11110111100101
3111021020101101012
423112033313211
5342214202131
630520312005
74501134140
oct1326176745
9437211335
10190381541
1198513519
1253912605
133059a2cc
141b3db057
1511aa952b
hexb58fde5

190381541 has 8 divisors (see below), whose sum is σ = 217755840. Its totient is φ = 163051488.

The previous prime is 190381519. The next prime is 190381561. The reversal of 190381541 is 145183091.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-190381541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 190381498 and 190381507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190381561) 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, 1256 + ... + 19553.

It is an arithmetic number, because the mean of its divisors is an integer number (27219480).

Almost surely, 2190381541 is an apocalyptic number.

It is an amenable number.

190381541 is a deficient number, since it is larger than the sum of its proper divisors (27374299).

190381541 is a wasteful number, since it uses less digits than its factorization.

190381541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22123.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 190381541 is about 13797.8817577192. The cubic root of 190381541 is about 575.2742646231.

The spelling of 190381541 in words is "one hundred ninety million, three hundred eighty-one thousand, five hundred forty-one".

Divisors: 1 7 1307 9149 20809 145663 27197363 190381541