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71010110010101 = 5310611262783597
BaseRepresentation
bin10000001001010101010100…
…011000011111001011110101
3100022102111111122210220220012
4100021111110120133023311
533301412201130310401
6411005332202350005
720646211503040133
oct2011252430371365
9308374448726805
1071010110010101
1120698244964269
127b6a29a1bb305
1330812bc6c9832
141376c9c8aa753
15832208aea8bb
hex40955461f2f5

71010110010101 has 8 divisors (see below), whose sum is σ = 72418113778104. Its totient is φ = 69604631811520.

The previous prime is 71010110010089. The next prime is 71010110010109. The reversal of 71010110010101 is 10101001101017.

It can be written as a sum of positive squares in 4 ways, for example, as 43341142393201 + 27668967616900 = 6583399^2 + 5260130^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-71010110010101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71010110010109) 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, 631335566 + ... + 631448031.

It is an arithmetic number, because the mean of its divisors is an integer number (9052264222263).

Almost surely, 271010110010101 is an apocalyptic number.

It is an amenable number.

71010110010101 is a deficient number, since it is larger than the sum of its proper divisors (1408003768003).

71010110010101 is a wasteful number, since it uses less digits than its factorization.

71010110010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262784711.

The product of its (nonzero) digits is 7, while the sum is 14.

Adding to 71010110010101 its reverse (10101001101017), we get a palindrome (81111111111118).

The spelling of 71010110010101 in words is "seventy-one trillion, ten billion, one hundred ten million, ten thousand, one hundred one".

Divisors: 1 53 1061 56233 1262783597 66927530641 1339813396417 71010110010101