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980498306851 = 7245561570413
BaseRepresentation
bin11100100010010100100…
…00001101011100100011
310110201211121112202201121
432101022100031130203
5112031030031304401
62030233521313111
7130560443044540
oct16211220153443
93421747482647
10980498306851
11348910807218
1213a03aa95797
13715cac0243b
14356563d5bc7
151a78962bca1
hexe44a40d723

980498306851 has 8 divisors (see below), whose sum is σ = 1120576021344. Its totient is φ = 840422224320.

The previous prime is 980498306849. The next prime is 980498306857. The reversal of 980498306851 is 158603894089.

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

It is not a de Polignac number, because 980498306851 - 21 = 980498306849 is a prime.

It is a super-2 number, since 2×9804983068512 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 980498306851.

It is not an unprimeable number, because it can be changed into a prime (980498306857) 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 7 ways as a sum of consecutive naturals, for example, 1433721 + ... + 2004133.

It is an arithmetic number, because the mean of its divisors is an integer number (140072002668).

Almost surely, 2980498306851 is an apocalyptic number.

980498306851 is a deficient number, since it is larger than the sum of its proper divisors (140077714493).

980498306851 is a wasteful number, since it uses less digits than its factorization.

980498306851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815981.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 980498306851 in words is "nine hundred eighty billion, four hundred ninety-eight million, three hundred six thousand, eight hundred fifty-one".

Divisors: 1 7 245561 570413 1718927 3992891 140071186693 980498306851