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71705941 = 836611307
BaseRepresentation
bin1000100011000…
…10010101010101
311222221001001121
410101202111111
5121324042231
611040523541
71530330136
oct421422525
9158831047
1071705941
113752680a
12200205b1
1311b18168
149747c8d
156466311
hex4462555

71705941 has 8 divisors (see below), whose sum is σ = 72735264. Its totient is φ = 70680720.

The previous prime is 71705939. The next prime is 71705957. The reversal of 71705941 is 14950717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71705941 - 21 = 71705939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71705897 and 71705906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71705971) 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 7 ways as a sum of consecutive naturals, for example, 54210 + ... + 55516.

It is an arithmetic number, because the mean of its divisors is an integer number (9091908).

Almost surely, 271705941 is an apocalyptic number.

It is an amenable number.

71705941 is a deficient number, since it is larger than the sum of its proper divisors (1029323).

71705941 is a wasteful number, since it uses less digits than its factorization.

71705941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 71705941 is about 8467.9360531360. The cubic root of 71705941 is about 415.4496331494.

The spelling of 71705941 in words is "seventy-one million, seven hundred five thousand, nine hundred forty-one".

Divisors: 1 83 661 1307 54863 108481 863927 71705941