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71429789319168 = 219372372677
BaseRepresentation
bin10000001111011100001011…
…001110000000000000000000
3100100220121202211110202212210
4100033130023032000000000
533330301202031203133
6411530220414422120
721021426524231100
oct2017341316000000
9310817684422783
1071429789319168
112083a226999855
1280176a3b01940
1330b1a5314bc47
14138d312517200
1583d0bd015763
hex40f70b380000

71429789319168 has 720 divisors, whose sum is σ = 228064735344600. Its totient is φ = 19827599081472.

The previous prime is 71429789319067. The next prime is 71429789319169. The reversal of 71429789319168 is 86191398792417.

It is a self number, because there is not a number n which added to its sum of digits gives 71429789319168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429789319169) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105509289646 + ... + 105509290322.

Almost surely, 271429789319168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71429789319168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114032367672300).

71429789319168 is an abundant number, since it is smaller than the sum of its proper divisors (156634946025432).

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

71429789319168 is an frugal number, since it uses more digits than its factorization.

71429789319168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 726 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 75.

The spelling of 71429789319168 in words is "seventy-one trillion, four hundred twenty-nine billion, seven hundred eighty-nine million, three hundred nineteen thousand, one hundred sixty-eight".