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71472352 = 257171372
BaseRepresentation
bin1000100001010…
…01010011100000
311222111011122011
410100221103200
5121244103402
611031522304
71525335130
oct420512340
9158434564
1071472352
1137387266
121bb29394
1311a65a43
1496c6ac0
15641bed7
hex44294e0

71472352 has 72 divisors (see below), whose sum is σ = 171524304. Its totient is φ = 28618752.

The previous prime is 71472337. The next prime is 71472361. The reversal of 71472352 is 25327417.

It is a congruent number.

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, 521628 + ... + 521764.

It is an arithmetic number, because the mean of its divisors is an integer number (2382282).

Almost surely, 271472352 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 71472352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85762152).

71472352 is an abundant number, since it is smaller than the sum of its proper divisors (100051952).

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

71472352 is a wasteful number, since it uses less digits than its factorization.

71472352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 163 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 71472352 is about 8454.1322440567. The cubic root of 71472352 is about 414.9980200225.

Adding to 71472352 its reverse (25327417), we get a palindrome (96799769).

It can be divided in two parts, 71472 and 352, that added together give a square (71824 = 2682).

The spelling of 71472352 in words is "seventy-one million, four hundred seventy-two thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 137 224 238 272 274 476 544 548 952 959 1096 1904 1918 2192 2329 3808 3836 4384 4658 7672 9316 15344 16303 18632 18769 30688 32606 37264 37538 65212 74528 75076 130424 131383 150152 260848 262766 300304 319073 521696 525532 600608 638146 1051064 1276292 2102128 2233511 2552584 4204256 4467022 5105168 8934044 10210336 17868088 35736176 71472352