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71741630 = 2543166841
BaseRepresentation
bin1000100011010…
…11000010111110
311222222212000102
410101223002332
5121331213010
611041401102
71530536162
oct421530276
9158885012
1071741630
1137550604
1220039192
1311b2b48c
149756ca2
156471ba5
hex446b0be

71741630 has 16 divisors (see below), whose sum is σ = 132138864. Its totient is φ = 28029120.

The previous prime is 71741629. The next prime is 71741633. The reversal of 71741630 is 3614717.

It is a super-2 number, since 2×717416302 = 10293722950113800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71741593 and 71741602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71741633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82991 + ... + 83850.

It is an arithmetic number, because the mean of its divisors is an integer number (8258679).

Almost surely, 271741630 is an apocalyptic number.

71741630 is a deficient number, since it is larger than the sum of its proper divisors (60397234).

71741630 is a wasteful number, since it uses less digits than its factorization.

71741630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166891.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 71741630 is about 8470.0430931607. The cubic root of 71741630 is about 415.5185466526.

The spelling of 71741630 in words is "seventy-one million, seven hundred forty-one thousand, six hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 166841 333682 834205 1668410 7174163 14348326 35870815 71741630