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998080867 = 7317164781
BaseRepresentation
bin111011011111011…
…000000101100011
32120120001202120001
4323133120011203
54021002041432
6243012200431
733506355520
oct7337300543
92516052501
10998080867
11472432a23
1223a309117
1312ba177c4
14967ac147
155c9529e7
hex3b7d8163

998080867 has 16 divisors (see below), whose sum is σ = 1194061824. Its totient is φ = 816228000.

The previous prime is 998080847. The next prime is 998080873. The reversal of 998080867 is 768080899.

It is not a de Polignac number, because 998080867 - 27 = 998080739 is a prime.

It is a super-3 number, since 3×9980808673 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998080817) 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, 16984 + ... + 47797.

It is an arithmetic number, because the mean of its divisors is an integer number (74628864).

Almost surely, 2998080867 is an apocalyptic number.

998080867 is a deficient number, since it is larger than the sum of its proper divisors (195980957).

998080867 is a wasteful number, since it uses less digits than its factorization.

998080867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64890.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 998080867 is about 31592.4178720148. The cubic root of 998080867 is about 999.3598793330.

The spelling of 998080867 in words is "nine hundred ninety-eight million, eighty thousand, eight hundred sixty-seven".

Divisors: 1 7 31 71 217 497 2201 15407 64781 453467 2008211 4599451 14057477 32196157 142582981 998080867