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71141052 = 22353111857
BaseRepresentation
bin1000011110110…
…00011010111100
311221212100011210
410033120122330
5121203003202
611020444420
71522455213
oct417303274
9157770153
1071141052
1137180364
121b9a9710
131197acc8
14963c07a
1563a3c6c
hex43d86bc

71141052 has 24 divisors (see below), whose sum is σ = 169129296. Its totient is φ = 23266048.

The previous prime is 71141029. The next prime is 71141099. The reversal of 71141052 is 25014117.

It is a happy number.

It is a super-2 number, since 2×711410522 = 10122098559333408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55293 + ... + 56564.

It is an arithmetic number, because the mean of its divisors is an integer number (7047054).

Almost surely, 271141052 is an apocalyptic number.

It is an amenable number.

71141052 is an abundant number, since it is smaller than the sum of its proper divisors (97988244).

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

71141052 is a wasteful number, since it uses less digits than its factorization.

71141052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111917 (or 111915 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 71141052 is about 8434.5155166139. The cubic root of 71141052 is about 414.3558051163.

Adding to 71141052 its reverse (25014117), we get a palindrome (96155169).

The spelling of 71141052 in words is "seventy-one million, one hundred forty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 111857 223714 335571 447428 671142 1342284 5928421 11856842 17785263 23713684 35570526 71141052