Search a number
-
+
980623145 = 5684128669
BaseRepresentation
bin111010011100110…
…001111100101001
32112100012211001202
4322130301330221
54002014420040
6241150053545
733205105415
oct7234617451
92470184052
10980623145
11463599757
122344aa2b5
131282145a8
1494345d45
155b155015
hex3a731f29

980623145 has 8 divisors (see below), whose sum is σ = 1176960840. Its totient is φ = 784356480.

The previous prime is 980623109. The next prime is 980623169. The reversal of 980623145 is 541326089.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 334853401 + 645769744 = 18299^2 + 25412^2 .

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

It is not a de Polignac number, because 980623145 - 210 = 980622121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 980623099 and 980623108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19871 + ... + 48539.

It is an arithmetic number, because the mean of its divisors is an integer number (147120105).

Almost surely, 2980623145 is an apocalyptic number.

It is an amenable number.

980623145 is a deficient number, since it is larger than the sum of its proper divisors (196337695).

980623145 is a wasteful number, since it uses less digits than its factorization.

980623145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35515.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 980623145 is about 31314.9029217719. The cubic root of 980623145 is about 993.4988753002.

The spelling of 980623145 in words is "nine hundred eighty million, six hundred twenty-three thousand, one hundred forty-five".

Divisors: 1 5 6841 28669 34205 143345 196124629 980623145