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8997498659 = 171921466107
BaseRepresentation
bin10000110000100101…
…01110111100100011
3212020001101021211002
420120102232330203
5121411324424114
64044451342215
7435652322342
oct103022567443
925201337732
108997498659
1138a7942a06
1218b12b196b
13b050b5906
14614d63b59
15379d857de
hex2184aef23

8997498659 has 12 divisors (see below), whose sum is σ = 10054568664. Its totient is φ = 8022532032.

The previous prime is 8997498647. The next prime is 8997498691. The reversal of 8997498659 is 9568947998.

It is a de Polignac number, because none of the positive numbers 2k-8997498659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8997498619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726917 + ... + 739190.

It is an arithmetic number, because the mean of its divisors is an integer number (837880722).

Almost surely, 28997498659 is an apocalyptic number.

8997498659 is a deficient number, since it is larger than the sum of its proper divisors (1057070005).

8997498659 is a wasteful number, since it uses less digits than its factorization.

8997498659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466162 (or 1466143 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 74.

The square root of 8997498659 is about 94855.1456643233. The cubic root of 8997498659 is about 2079.8911015318.

The spelling of 8997498659 in words is "eight billion, nine hundred ninety-seven million, four hundred ninety-eight thousand, six hundred fifty-nine".

Divisors: 1 17 19 323 361 6137 1466107 24923819 27856033 473552561 529264627 8997498659