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71676384 = 2531379727
BaseRepresentation
bin1000100010110…
…11000111100000
311222212112111220
410101123013200
5121322121014
611040135040
71530145023
oct421330740
9158775456
1071676384
113750658a
1220007480
1311b07880
14973b1ba
15645c6a9
hex445b1e0

71676384 has 96 divisors (see below), whose sum is σ = 205470720. Its totient is φ = 21745152.

The previous prime is 71676383. The next prime is 71676421. The reversal of 71676384 is 48367617.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71676383) 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, 98229 + ... + 98955.

It is an arithmetic number, because the mean of its divisors is an integer number (2140320).

Almost surely, 271676384 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 71676384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102735360).

71676384 is an abundant number, since it is smaller than the sum of its proper divisors (133794336).

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

71676384 is a wasteful number, since it uses less digits than its factorization.

71676384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 824 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 71676384 is about 8466.1906427862. The cubic root of 71676384 is about 415.3925428898.

The spelling of 71676384 in words is "seventy-one million, six hundred seventy-six thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 79 96 104 156 158 208 237 312 316 416 474 624 632 727 948 1027 1248 1264 1454 1896 2054 2181 2528 2908 3081 3792 4108 4362 5816 6162 7584 8216 8724 9451 11632 12324 16432 17448 18902 23264 24648 28353 32864 34896 37804 49296 56706 57433 69792 75608 98592 113412 114866 151216 172299 226824 229732 302432 344598 453648 459464 689196 746629 907296 918928 1378392 1493258 1837856 2239887 2756784 2986516 4479774 5513568 5973032 8959548 11946064 17919096 23892128 35838192 71676384