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71996696992 = 2511204536071
BaseRepresentation
bin100001100001101010…
…1100110100110100000
320212211120111011020001
41003003111212212200
52134422123300432
653024055025344
75126100553453
oct1030325464640
9225746434201
1071996696992
1128596293080
1211b5366b254
136a3500646c
1436adc9149a
151d15a6e9e7
hex10c35669a0

71996696992 has 24 divisors (see below), whose sum is σ = 154629270432. Its totient is φ = 32725771200.

The previous prime is 71996696977. The next prime is 71996697001. The reversal of 71996696992 is 29969669917.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102267684 + ... + 102268387.

It is an arithmetic number, because the mean of its divisors is an integer number (6442886268).

Almost surely, 271996696992 is an apocalyptic number.

It is an amenable number.

71996696992 is an abundant number, since it is smaller than the sum of its proper divisors (82632573440).

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

71996696992 is a wasteful number, since it uses less digits than its factorization.

71996696992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204536092 (or 204536084 counting only the distinct ones).

The product of its digits is 178564176, while the sum is 73.

The spelling of 71996696992 in words is "seventy-one billion, nine hundred ninety-six million, six hundred ninety-six thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 204536071 409072142 818144284 1636288568 2249896781 3272577136 4499793562 6545154272 8999587124 17999174248 35998348496 71996696992