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71351013 = 3127187273
BaseRepresentation
bin1000100000010…
…11101011100101
311222021000012010
410100023223211
5121231213023
611025144433
71524321306
oct420135345
9158230163
1071351013
1137304088
121ba8b119
1311a22746
1496947ad
1563e6093
hex440bae5

71351013 has 8 divisors (see below), whose sum is σ = 95884288. Its totient is φ = 47192544.

The previous prime is 71350999. The next prime is 71351041. The reversal of 71351013 is 31015317.

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

It is not a de Polignac number, because 71351013 - 24 = 71350997 is a prime.

It is a super-2 number, since 2×713510132 = 10181934112252338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71351113) 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, 93256 + ... + 94017.

It is an arithmetic number, because the mean of its divisors is an integer number (11985536).

Almost surely, 271351013 is an apocalyptic number.

It is an amenable number.

71351013 is a deficient number, since it is larger than the sum of its proper divisors (24533275).

71351013 is a wasteful number, since it uses less digits than its factorization.

71351013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187403.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 71351013 is about 8446.9528825488. The cubic root of 71351013 is about 414.7630388655.

The spelling of 71351013 in words is "seventy-one million, three hundred fifty-one thousand, thirteen".

Divisors: 1 3 127 381 187273 561819 23783671 71351013