Search a number
-
+
190057589 = 1910003031
BaseRepresentation
bin10110101010000…
…00110001110101
3111020121220222222
423111000301311
5342123320324
630505332125
74465314521
oct1325006165
9436556888
10190057589
1198312097
1253797045
13304b5a17
141b354d81
1511a4355e
hexb540c75

190057589 has 4 divisors (see below), whose sum is σ = 200060640. Its totient is φ = 180054540.

The previous prime is 190057583. The next prime is 190057597. The reversal of 190057589 is 985750091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 985750091 = 1576278663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-190057589 is a prime.

It is a super-2 number, since 2×1900575892 = 72243774272985842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190057583) 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 3 ways as a sum of consecutive naturals, for example, 5001497 + ... + 5001534.

It is an arithmetic number, because the mean of its divisors is an integer number (50015160).

Almost surely, 2190057589 is an apocalyptic number.

190057589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

190057589 is a deficient number, since it is larger than the sum of its proper divisors (10003051).

190057589 is a wasteful number, since it uses less digits than its factorization.

190057589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003050.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 190057589 is about 13786.1375664107. The cubic root of 190057589 is about 574.9477850506.

The spelling of 190057589 in words is "one hundred ninety million, fifty-seven thousand, five hundred eighty-nine".

Divisors: 1 19 10003031 190057589