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71350541 = 3761101313
BaseRepresentation
bin1000100000010…
…11100100001101
311222020222112122
410100023210031
5121231204131
611025142325
71524320033
oct420134415
9158228478
1071350541
1137303799
121ba8a9a5
1311a22472
149694553
1563e5d7b
hex440b90d

71350541 has 16 divisors (see below), whose sum is σ = 75457968. Its totient is φ = 67392000.

The previous prime is 71350523. The next prime is 71350549. The reversal of 71350541 is 14505317.

It can be written as a sum of positive squares in 8 ways, for example, as 1276900 + 70073641 = 1130^2 + 8371^2 .

It is a cyclic number.

It is not a de Polignac number, because 71350541 - 210 = 71349517 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71350541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71350549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227801 + ... + 228113.

It is an arithmetic number, because the mean of its divisors is an integer number (4716123).

Almost surely, 271350541 is an apocalyptic number.

It is an amenable number.

71350541 is a deficient number, since it is larger than the sum of its proper divisors (4107427).

71350541 is a wasteful number, since it uses less digits than its factorization.

71350541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 71350541 is about 8446.9249434336. The cubic root of 71350541 is about 414.7621242857.

Adding to 71350541 its reverse (14505317), we get a palindrome (85855858).

The spelling of 71350541 in words is "seventy-one million, three hundred fifty thousand, five hundred forty-one".

Divisors: 1 37 61 101 313 2257 3737 6161 11581 19093 31613 227957 706441 1169681 1928393 71350541