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8398118480 = 245104976481
BaseRepresentation
bin1111101001001000…
…10001111001010000
3210200021112121210012
413310210101321100
5114144404242410
63505200454052
7415053554303
oct76444217120
923607477705
108398118480
11361a578794
12176461a328
13a3ab7619b
145994dcb3a
1534243b605
hex1f4911e50

8398118480 has 20 divisors (see below), whose sum is σ = 19525625652. Its totient is φ = 3359247360.

The previous prime is 8398118479. The next prime is 8398118513. The reversal of 8398118480 is 848118938.

It can be written as a sum of positive squares in 2 ways, for example, as 2761712704 + 5636405776 = 52552^2 + 75076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52488161 + ... + 52488320.

Almost surely, 28398118480 is an apocalyptic number.

8398118480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8398118480 is an abundant number, since it is smaller than the sum of its proper divisors (11127507172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8398118480 is a wasteful number, since it uses less digits than its factorization.

8398118480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104976494 (or 104976488 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 50.

The square root of 8398118480 is about 91641.2487911421. The cubic root of 8398118480 is about 2032.6409268936.

The spelling of 8398118480 in words is "eight billion, three hundred ninety-eight million, one hundred eighteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 104976481 209952962 419905924 524882405 839811848 1049764810 1679623696 2099529620 4199059240 8398118480