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71150105 = 5133313307
BaseRepresentation
bin1000011110110…
…10101000011001
311221212210121002
410033122220121
5121203300410
611020554345
71522523465
oct417325031
9157783532
1071150105
1137187144
121b9b29b5
1311982170
1496414a5
1563a67a5
hex43daa19

71150105 has 16 divisors (see below), whose sum is σ = 92253504. Its totient is φ = 52367040.

The previous prime is 71150089. The next prime is 71150141. The reversal of 71150105 is 50105117.

It is not a de Polignac number, because 71150105 - 24 = 71150089 is a prime.

It is a super-2 number, since 2×711501052 = 10124674883022050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19862 + ... + 23168.

It is an arithmetic number, because the mean of its divisors is an integer number (5765844).

Almost surely, 271150105 is an apocalyptic number.

It is an amenable number.

71150105 is a deficient number, since it is larger than the sum of its proper divisors (21103399).

71150105 is a wasteful number, since it uses less digits than its factorization.

71150105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 71150105 is about 8435.0521634427. The cubic root of 71150105 is about 414.3733805475.

The spelling of 71150105 in words is "seventy-one million, one hundred fifty thousand, one hundred five".

Divisors: 1 5 13 65 331 1655 3307 4303 16535 21515 42991 214955 1094617 5473085 14230021 71150105