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71048712 = 23371724877
BaseRepresentation
bin1000011110000…
…01111000001000
311221200122111210
410033001320020
5121142024322
611014453120
71521622050
oct417017010
9157618453
1071048712
1137117a49
121b9641a0
1311947c77
149616560
15638670c
hex43c1e08

71048712 has 64 divisors (see below), whose sum is σ = 214945920. Its totient is φ = 19104768.

The previous prime is 71048711. The next prime is 71048723. The reversal of 71048712 is 21784017.

It is a self number, because there is not a number n which added to its sum of digits gives 71048712.

It is not an unprimeable number, because it can be changed into a prime (71048711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9583 + ... + 15294.

It is an arithmetic number, because the mean of its divisors is an integer number (3358530).

Almost surely, 271048712 is an apocalyptic number.

It is an amenable number.

71048712 is an abundant number, since it is smaller than the sum of its proper divisors (143897208).

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

71048712 is a wasteful number, since it uses less digits than its factorization.

71048712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24910 (or 24906 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 71048712 is about 8429.0398029669. The cubic root of 71048712 is about 414.1764516570.

The spelling of 71048712 in words is "seventy-one million, forty-eight thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 84 102 119 136 168 204 238 357 408 476 714 952 1428 2856 24877 49754 74631 99508 149262 174139 199016 298524 348278 422909 522417 597048 696556 845818 1044834 1268727 1393112 1691636 2089668 2537454 2960363 3383272 4179336 5074908 5920726 8881089 10149816 11841452 17762178 23682904 35524356 71048712