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989020286463 = 311179167431909
BaseRepresentation
bin11100110010001100011…
…00111110110111111111
310111112211112011012001010
432121012030332313333
5112201003143131323
62034203305050303
7131311562504256
oct16310614766777
93445745135033
10989020286463
11351494193680
1213b818a86993
1372358624b21
1435c2413779d
151aad7882c93
hexe64633edff

989020286463 has 16 divisors (see below), whose sum is σ = 1446611702400. Its totient is φ = 596057592480.

The previous prime is 989020286393. The next prime is 989020286503. The reversal of 989020286463 is 364682020989.

It is not a de Polignac number, because 989020286463 - 214 = 989020270079 is a prime.

It is a super-2 number, since 2×9890202864632 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989030286463) 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, 83710048 + ... + 83721861.

It is an arithmetic number, because the mean of its divisors is an integer number (90413231400).

Almost surely, 2989020286463 is an apocalyptic number.

989020286463 is a deficient number, since it is larger than the sum of its proper divisors (457591415937).

989020286463 is a wasteful number, since it uses less digits than its factorization.

989020286463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167432102.

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 989020286463 in words is "nine hundred eighty-nine billion, twenty million, two hundred eighty-six thousand, four hundred sixty-three".

Divisors: 1 3 11 33 179 537 1969 5907 167431909 502295727 1841750999 5525252997 29970311711 89910935133 329673428821 989020286463