Search a number
-
+
798528981 = 31767233693
BaseRepresentation
bin101111100110001…
…001010111010101
32001122120110211110
4233212021113111
53113410411411
6211123125233
725534245555
oct5746112725
92048513743
10798528981
1137a826708
121a3513819
13c9589473
14780a5165
154a1862a6
hex2f9895d5

798528981 has 16 divisors (see below), whose sum is σ = 1144165824. Its totient is φ = 493557504.

The previous prime is 798528967. The next prime is 798529009. The reversal of 798528981 is 189825897.

It is not a de Polignac number, because 798528981 - 26 = 798528917 is a prime.

It is a super-2 number, since 2×7985289812 = 1275297066993796722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798528901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 113430 + ... + 120263.

It is an arithmetic number, because the mean of its divisors is an integer number (71510364).

Almost surely, 2798528981 is an apocalyptic number.

It is an amenable number.

798528981 is a deficient number, since it is larger than the sum of its proper divisors (345636843).

798528981 is a wasteful number, since it uses less digits than its factorization.

798528981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233780.

The product of its digits is 2903040, while the sum is 57.

The square root of 798528981 is about 28258.2550947506. The cubic root of 798528981 is about 927.7484288383.

The spelling of 798528981 in words is "seven hundred ninety-eight million, five hundred twenty-eight thousand, nine hundred eighty-one".

Divisors: 1 3 17 51 67 201 1139 3417 233693 701079 3972781 11918343 15657431 46972293 266176327 798528981