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6982198489 = 719311168803
BaseRepresentation
bin1101000000010101…
…11110010011011001
3200000121020102201001
412200022332103121
5103244420322424
63112500425001
7335011464550
oct64012762331
920017212631
106982198489
112a632a6082
12142a3a8161
138737123c6
144a3444d97
152ace9e844
hex1a02be4d9

6982198489 has 16 divisors (see below), whose sum is σ = 8426695680. Its totient is φ = 5651490960.

The previous prime is 6982198463. The next prime is 6982198511. The reversal of 6982198489 is 9848912896.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6982198489 is a prime.

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 6982198489.

It is not an unprimeable number, because it can be changed into a prime (6982198189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43039 + ... + 125764.

It is an arithmetic number, because the mean of its divisors is an integer number (526668480).

Almost surely, 26982198489 is an apocalyptic number.

It is an amenable number.

6982198489 is a deficient number, since it is larger than the sum of its proper divisors (1444497191).

6982198489 is a wasteful number, since it uses less digits than its factorization.

6982198489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169140.

The product of its digits is 17915904, while the sum is 64.

The square root of 6982198489 is about 83559.5505552776. The cubic root of 6982198489 is about 1911.3082316856.

The spelling of 6982198489 in words is "six billion, nine hundred eighty-two million, one hundred ninety-eight thousand, four hundred eighty-nine".

Divisors: 1 7 19 133 311 2177 5909 41363 168803 1181621 3207257 22450799 52497733 367484131 997456927 6982198489