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71296704 = 2632413019
BaseRepresentation
bin1000011111111…
…10011011000000
311222011020200200
410033332123000
5121222443304
611024045200
71524004053
oct417763300
9158136620
1071296704
11372772a6
121ba63800
1311a03acb
14967ca9a
1563d4e39
hex43fe6c0

71296704 has 84 divisors (see below), whose sum is σ = 209412840. Its totient is φ = 23178240.

The previous prime is 71296699. The next prime is 71296727. The reversal of 71296704 is 40769217.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22107 + ... + 25125.

It is an arithmetic number, because the mean of its divisors is an integer number (2493010).

Almost surely, 271296704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71296704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104706420).

71296704 is an abundant number, since it is smaller than the sum of its proper divisors (138116136).

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

71296704 is a wasteful number, since it uses less digits than its factorization.

71296704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 71296704 is about 8443.7375610567. The cubic root of 71296704 is about 414.6577795173.

The spelling of 71296704 in words is "seventy-one million, two hundred ninety-six thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 41 48 64 72 82 96 123 144 164 192 246 288 328 369 492 576 656 738 984 1312 1476 1968 2624 2952 3019 3936 5904 6038 7872 9057 11808 12076 18114 23616 24152 27171 36228 48304 54342 72456 96608 108684 123779 144912 193216 217368 247558 289824 371337 434736 495116 579648 742674 869472 990232 1114011 1485348 1738944 1980464 2228022 2970696 3960928 4456044 5941392 7921856 8912088 11882784 17824176 23765568 35648352 71296704