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71152041 = 3231031189
BaseRepresentation
bin1000011110110…
…11000110101001
311221212220020210
410033123012221
5121203331131
611021011333
71522532232
oct417330651
9157786223
1071152041
1137188644
121b9b3b49
1311982ccc
149642089
1563a7146
hex43db1a9

71152041 has 8 divisors (see below), whose sum is σ = 98994240. Its totient is φ = 45372272.

The previous prime is 71152033. The next prime is 71152043. The reversal of 71152041 is 14025117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71152041 - 23 = 71152033 is a prime.

It is a super-2 number, since 2×711520412 = 10125225876931362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71151999 and 71152017.

It is not an unprimeable number, because it can be changed into a prime (71152043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515526 + ... + 515663.

It is an arithmetic number, because the mean of its divisors is an integer number (12374280).

Almost surely, 271152041 is an apocalyptic number.

It is an amenable number.

71152041 is a deficient number, since it is larger than the sum of its proper divisors (27842199).

71152041 is a wasteful number, since it uses less digits than its factorization.

71152041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031215.

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

The square root of 71152041 is about 8435.1669218813. The cubic root of 71152041 is about 414.3771388909.

Adding to 71152041 its reverse (14025117), we get a palindrome (85177158).

The spelling of 71152041 in words is "seventy-one million, one hundred fifty-two thousand, forty-one".

Divisors: 1 3 23 69 1031189 3093567 23717347 71152041