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71750130 = 2352391671
BaseRepresentation
bin1000100011011…
…01000111110010
312000000021200020
410101231013302
5121332001010
611041504310
71530603024
oct421550762
9160007606
1071750130
1137556a31
1220042096
1311b322ca
14975a014
156474470
hex446d1f2

71750130 has 16 divisors (see below), whose sum is σ = 172200384. Its totient is φ = 19133360.

The previous prime is 71750111. The next prime is 71750131. The reversal of 71750130 is 3105717.

It is a self number, because there is not a number n which added to its sum of digits gives 71750130.

It is not an unprimeable number, because it can be changed into a prime (71750131) 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, 1195806 + ... + 1195865.

It is an arithmetic number, because the mean of its divisors is an integer number (10762524).

Almost surely, 271750130 is an apocalyptic number.

71750130 is an abundant number, since it is smaller than the sum of its proper divisors (100450254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71750130 is a wasteful number, since it uses less digits than its factorization.

71750130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391681.

The product of its (nonzero) digits is 735, while the sum is 24.

The square root of 71750130 is about 8470.5448467026. The cubic root of 71750130 is about 415.5349563168.

Adding to 71750130 its reverse (3105717), we get a palindrome (74855847).

The spelling of 71750130 in words is "seventy-one million, seven hundred fifty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2391671 4783342 7175013 11958355 14350026 23916710 35875065 71750130