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71503041 = 361390727
BaseRepresentation
bin1000100001100…
…00110011000001
311222112201201210
410100300303001
5121301044131
611032320333
71525523451
oct420606301
9158481653
1071503041
11373a8325
121bb430a9
1311a769bc
1496d3d61
156426146
hex4430cc1

71503041 has 8 divisors (see below), whose sum is σ = 96900544. Its totient is φ = 46887120.

The previous prime is 71503031. The next prime is 71503043. The reversal of 71503041 is 14030517.

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

It is not a de Polignac number, because 71503041 - 219 = 70978753 is a prime.

It is a super-2 number, since 2×715030412 = 10225369744495362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71502999 and 71503017.

It is not an unprimeable number, because it can be changed into a prime (71503043) 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, 195181 + ... + 195546.

It is an arithmetic number, because the mean of its divisors is an integer number (12112568).

Almost surely, 271503041 is an apocalyptic number.

It is an amenable number.

71503041 is a deficient number, since it is larger than the sum of its proper divisors (25397503).

71503041 is a wasteful number, since it uses less digits than its factorization.

71503041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390791.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 71503041 is about 8455.9470788316. The cubic root of 71503041 is about 415.0574091963.

Adding to 71503041 its reverse (14030517), we get a palindrome (85533558).

The spelling of 71503041 in words is "seventy-one million, five hundred three thousand, forty-one".

Divisors: 1 3 61 183 390727 1172181 23834347 71503041