Search a number
-
+
980528943 = 3326842981
BaseRepresentation
bin111010011100011…
…010111100101111
32112100001000211210
4322130122330233
54002003411233
6241144045503
733204233652
oct7234327457
92470030753
10980528943
114635349a9
12234463893
131281b0754
149431d899
155b137163
hex3a71af2f

980528943 has 4 divisors (see below), whose sum is σ = 1307371928. Its totient is φ = 653685960.

The previous prime is 980528929. The next prime is 980528963. The reversal of 980528943 is 349825089.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 980528943 - 212 = 980524847 is a prime.

It is a super-4 number, since 4×9805289434 (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 980528892 and 980528901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980528963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163421488 + ... + 163421493.

It is an arithmetic number, because the mean of its divisors is an integer number (326842982).

Almost surely, 2980528943 is an apocalyptic number.

980528943 is a deficient number, since it is larger than the sum of its proper divisors (326842985).

980528943 is a wasteful number, since it uses less digits than its factorization.

980528943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326842984.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 980528943 is about 31313.3987775201. The cubic root of 980528943 is about 993.4670613193.

The spelling of 980528943 in words is "nine hundred eighty million, five hundred twenty-eight thousand, nine hundred forty-three".

Divisors: 1 3 326842981 980528943