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489447234760 = 235116118235739
BaseRepresentation
bin1110001111101010101…
…01000001110011001000
31201210100102022200202111
413013311111001303020
531004341443003020
61012503212512104
750234646565051
oct7076525016310
91653312280674
10489447234760
11179634227810
127aa36a7b634
1337201a925a3
14199918d1728
15cae9487d5a
hex71f5541cc8

489447234760 has 64 divisors (see below), whose sum is σ = 1221065150400. Its totient is φ = 175063084800.

The previous prime is 489447234739. The next prime is 489447234799. The reversal of 489447234760 is 67432744984.

It is a happy number.

It is a super-2 number, since 2×4894472347602 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 489447234695 and 489447234704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9091030 + ... + 9144709.

It is an arithmetic number, because the mean of its divisors is an integer number (19079142975).

Almost surely, 2489447234760 is an apocalyptic number.

489447234760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489447234760 is an abundant number, since it is smaller than the sum of its proper divisors (731617915640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489447234760 is a wasteful number, since it uses less digits than its factorization.

489447234760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18235822 (or 18235818 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 58.

The spelling of 489447234760 in words is "four hundred eighty-nine billion, four hundred forty-seven million, two hundred thirty-four thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 61 88 110 122 220 244 305 440 488 610 671 1220 1342 2440 2684 3355 5368 6710 13420 26840 18235739 36471478 72942956 91178695 145885912 182357390 200593129 364714780 401186258 729429560 802372516 1002965645 1112380079 1604745032 2005931290 2224760158 4011862580 4449520316 5561900395 8023725160 8899040632 11123800790 12236180869 22247601580 24472361738 44495203160 48944723476 61180904345 97889446952 122361808690 244723617380 489447234760