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76871424 = 283779181
BaseRepresentation
bin1001001010011…
…11011100000000
312100122110202210
410211033130000
5124134341144
611343342120
71622252640
oct445173400
9170573683
1076871424
113a434703
12218b1940
1312c06366
14a2d0520
156b36ab9
hex494f700

76871424 has 144 divisors (see below), whose sum is σ = 238085120. Its totient is φ = 21565440.

The previous prime is 76871423. The next prime is 76871429. The reversal of 76871424 is 42417867.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76871423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424614 + ... + 424794.

Almost surely, 276871424 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 76871424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119042560).

76871424 is an abundant number, since it is smaller than the sum of its proper divisors (161213696).

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

76871424 is a wasteful number, since it uses less digits than its factorization.

76871424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 272 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 76871424 is about 8767.6350289003. The cubic root of 76871424 is about 425.1951565081.

The spelling of 76871424 in words is "seventy-six million, eight hundred seventy-one thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 79 84 96 112 128 158 168 181 192 224 237 256 316 336 362 384 448 474 543 553 632 672 724 768 896 948 1086 1106 1264 1267 1344 1448 1659 1792 1896 2172 2212 2528 2534 2688 2896 3318 3792 3801 4344 4424 5056 5068 5376 5792 6636 7584 7602 8688 8848 10112 10136 11584 13272 14299 15168 15204 17376 17696 20224 20272 23168 26544 28598 30336 30408 34752 35392 40544 42897 46336 53088 57196 60672 60816 69504 70784 81088 85794 100093 106176 114392 121632 139008 141568 162176 171588 200186 212352 228784 243264 300279 324352 343176 400372 424704 457568 486528 600558 686352 800744 915136 973056 1201116 1372704 1601488 1830272 2402232 2745408 3202976 3660544 4804464 5490816 6405952 9608928 10981632 12811904 19217856 25623808 38435712 76871424