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71484949344 = 2531743142719
BaseRepresentation
bin100001010010011010…
…1011100001101100000
320211111220112200102110
41002210311130031200
52132400121334334
652501214315320
75110315021014
oct1024465341540
9224456480373
1071484949344
1128353432536
1211a301b8b40
136982c9a1c3
143661d1c544
151cd5b85ae9
hex10a4d5c360

71484949344 has 48 divisors (see below), whose sum is σ = 187663150080. Its totient is φ = 23826391680.

The previous prime is 71484949331. The next prime is 71484949399. The reversal of 71484949344 is 44394948417.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×714849493442 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652017 + ... + 1694735.

It is an arithmetic number, because the mean of its divisors is an integer number (3909648960).

Almost surely, 271484949344 is an apocalyptic number.

It is an amenable number.

71484949344 is an abundant number, since it is smaller than the sum of its proper divisors (116178200736).

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

71484949344 is a wasteful number, since it uses less digits than its factorization.

71484949344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60163 (or 60155 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 71484949344 in words is "seventy-one billion, four hundred eighty-four million, nine hundred forty-nine thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 17431 34862 42719 52293 69724 85438 104586 128157 139448 170876 209172 256314 278896 341752 418344 512628 557792 683504 836688 1025256 1367008 1673376 2050512 4101024 744634889 1489269778 2233904667 2978539556 4467809334 5957079112 8935618668 11914158224 17871237336 23828316448 35742474672 71484949344