Search a number
-
+
980189 = 7314517
BaseRepresentation
bin11101111010011011101
31211210120022
43233103131
5222331224
633001525
711221460
oct3572335
91753508
10980189
1160a481
123b32a5
132841c2
141b72d7
1514565e
hexef4dd

980189 has 8 divisors (see below), whose sum is σ = 1156608. Its totient is φ = 812880.

The previous prime is 980179. The next prime is 980197. The reversal of 980189 is 981089.

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 980189 - 24 = 980173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980149) 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, 2042 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (144576).

2980189 is an apocalyptic number.

It is an amenable number.

980189 is a deficient number, since it is larger than the sum of its proper divisors (176419).

980189 is a wasteful number, since it uses less digits than its factorization.

980189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 980189 is about 990.0449484746. The cubic root of 980189 is about 99.3352238528.

Subtracting 980189 from its reverse (981089), we obtain a square (900 = 302).

The spelling of 980189 in words is "nine hundred eighty thousand, one hundred eighty-nine".

Divisors: 1 7 31 217 4517 31619 140027 980189