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489104384481 = 33139197661541
BaseRepresentation
bin1110001111000001110…
…01001010000111100001
31201202110112012002121000
413013200321022013201
531003141210300411
61012405204222213
750223314446416
oct7074071120741
91652415162530
10489104384481
11179478746279
127a96009a969
1337178a407bb
141995c16610d
15cac9312956
hex71e0e4a1e1

489104384481 has 32 divisors (see below), whose sum is σ = 733517769600. Its totient is φ = 322080010560.

The previous prime is 489104384473. The next prime is 489104384633. The reversal of 489104384481 is 184483401984.

489104384481 is a `hidden beast` number, since 4 + 8 + 91 + 0 + 438 + 44 + 81 = 666.

It is not a de Polignac number, because 489104384481 - 23 = 489104384473 is a prime.

It is a super-2 number, since 2×4891043844812 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489104384981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408571 + ... + 1070111.

It is an arithmetic number, because the mean of its divisors is an integer number (22922430300).

Almost surely, 2489104384481 is an apocalyptic number.

It is an amenable number.

489104384481 is a deficient number, since it is larger than the sum of its proper divisors (244413385119).

489104384481 is a wasteful number, since it uses less digits than its factorization.

489104384481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661886 (or 661880 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 489104384481 in words is "four hundred eighty-nine billion, one hundred four million, three hundred eighty-four thousand, four hundred eighty-one".

Divisors: 1 3 9 27 139 197 417 591 1251 1773 3753 5319 27383 82149 246447 661541 739341 1984623 5953869 17861607 91954199 130323577 275862597 390970731 827587791 1172912193 2482763373 3518736579 18114977203 54344931609 163034794827 489104384481