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71759990148 = 22371177662327
BaseRepresentation
bin100001011010100111…
…0101000110110000100
320212020002002012110220
41002311032220312010
52133431024141043
652544401344340
75120164565160
oct1026516506604
9225202065426
1071759990148
1128484709790
1211aa83380b0
1369c7c69542
14368a675ca0
151ceedb4483
hex10b53a8d84

71759990148 has 48 divisors (see below), whose sum is σ = 208756337664. Its totient is φ = 18638958240.

The previous prime is 71759990089. The next prime is 71759990171. The reversal of 71759990148 is 84109995717.

It is a junction number, because it is equal to n+sod(n) for n = 71759990091 and 71759990100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38830240 + ... + 38832087.

It is an arithmetic number, because the mean of its divisors is an integer number (4349090368).

Almost surely, 271759990148 is an apocalyptic number.

It is an amenable number.

71759990148 is an abundant number, since it is smaller than the sum of its proper divisors (136996347516).

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

71759990148 is a wasteful number, since it uses less digits than its factorization.

71759990148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77662352 (or 77662350 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 60.

The spelling of 71759990148 in words is "seventy-one billion, seven hundred fifty-nine million, nine hundred ninety thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 77662327 155324654 232986981 310649308 465973962 543636289 854285597 931947924 1087272578 1630908867 1708571194 2174545156 2562856791 3261817734 3417142388 5125713582 5979999179 6523635468 10251427164 11959998358 17939997537 23919996716 35879995074 71759990148