Base | Representation |
---|---|
bin | 1000011101111… |
… | …00000111000101 |
3 | 11221122110010000 |
4 | 10032330013011 |
5 | 121140300333 |
6 | 11014151513 |
7 | 1521463146 |
oct | 416740705 |
9 | 157573100 |
10 | 71025093 |
11 | 37101227 |
12 | 1b952599 |
13 | 1193a2a9 |
14 | 960bacd |
15 | 637e713 |
hex | 43bc1c5 |
71025093 has 10 divisors (see below), whose sum is σ = 106099334. Its totient is φ = 47350008.
The previous prime is 71025083. The next prime is 71025103. The reversal of 71025093 is 39052017.
It is an interprime number because it is at equal distance from previous prime (71025083) and next prime (71025103).
It can be written as a sum of positive squares in only one way, i.e., 50936769 + 20088324 = 7137^2 + 4482^2 .
It is not a de Polignac number, because 71025093 - 24 = 71025077 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71025013) 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 9 ways as a sum of consecutive naturals, for example, 438346 + ... + 438507.
Almost surely, 271025093 is an apocalyptic number.
It is an amenable number.
71025093 is a deficient number, since it is larger than the sum of its proper divisors (35074241).
71025093 is an equidigital number, since it uses as much as digits as its factorization.
71025093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 876865 (or 876856 counting only the distinct ones).
The product of its (nonzero) digits is 1890, while the sum is 27.
The square root of 71025093 is about 8427.6386372459. The cubic root of 71025093 is about 414.1305511401.
The spelling of 71025093 in words is "seventy-one million, twenty-five thousand, ninety-three".
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