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71496960 = 283543433
BaseRepresentation
bin1000100001011…
…11010100000000
311222112102101120
410100233110000
5121300400320
611032232240
71525466643
oct420572400
9158472346
1071496960
11373a37a7
121bb3b680
1311a73cc2
1496d1a5a
156424440
hex442f500

71496960 has 144 divisors (see below), whose sum is σ = 234193344. Its totient is φ = 18579456.

The previous prime is 71496959. The next prime is 71496979. The reversal of 71496960 is 6969417.

It is a super-2 number, since 2×714969602 = 10223630578483200, which contains 22 as substring.

It is a congruent number.

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, 164904 + ... + 165336.

Almost surely, 271496960 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 71496960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117096672).

71496960 is an abundant number, since it is smaller than the sum of its proper divisors (162696384).

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

71496960 is a wasteful number, since it uses less digits than its factorization.

71496960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 71496960 is about 8455.5875017647. The cubic root of 71496960 is about 415.0456426308.

The spelling of 71496960 in words is "seventy-one million, four hundred ninety-six thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 80 86 96 120 128 129 160 172 192 215 240 256 258 320 344 384 430 433 480 516 640 645 688 768 860 866 960 1032 1280 1290 1299 1376 1720 1732 1920 2064 2165 2580 2598 2752 3440 3464 3840 4128 4330 5160 5196 5504 6495 6880 6928 8256 8660 10320 10392 11008 12990 13760 13856 16512 17320 18619 20640 20784 25980 27520 27712 33024 34640 37238 41280 41568 51960 55040 55424 55857 69280 74476 82560 83136 93095 103920 110848 111714 138560 148952 165120 166272 186190 207840 223428 277120 279285 297904 332544 372380 415680 446856 554240 558570 595808 744760 831360 893712 1117140 1191616 1489520 1662720 1787424 2234280 2383232 2979040 3574848 4468560 4766464 5958080 7149696 8937120 11916160 14299392 17874240 23832320 35748480 71496960