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71294304 = 2531674447
BaseRepresentation
bin1000011111111…
…01110101100000
311222011010101210
410033331311200
5121222404204
611024030120
71523664054
oct417756540
9158133353
1071294304
1137275514
121ba62340
1311a029a3
14967bc64
1563d4389
hex43fdd60

71294304 has 48 divisors (see below), whose sum is σ = 188310528. Its totient is φ = 23617152.

The previous prime is 71294297. The next prime is 71294317. The reversal of 71294304 is 40349217.

It is a happy number.

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

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, 13809 + ... + 18255.

It is an arithmetic number, because the mean of its divisors is an integer number (3923136).

Almost surely, 271294304 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 71294304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94155264).

71294304 is an abundant number, since it is smaller than the sum of its proper divisors (117016224).

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

71294304 is a wasteful number, since it uses less digits than its factorization.

71294304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627 (or 4619 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 71294304 is about 8443.5954427009. The cubic root of 71294304 is about 414.6531267083.

The spelling of 71294304 in words is "seventy-one million, two hundred ninety-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 167 334 501 668 1002 1336 2004 2672 4008 4447 5344 8016 8894 13341 16032 17788 26682 35576 53364 71152 106728 142304 213456 426912 742649 1485298 2227947 2970596 4455894 5941192 8911788 11882384 17823576 23764768 35647152 71294304