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71357414869 = 136618304133
BaseRepresentation
bin100001001110100111…
…0111011110111010101
320211012000120021000101
41002131032323313111
52132114444233434
652440421014101
75104206006256
oct1023516736725
9224160507011
1071357414869
1128298444a44
12119b5554331
136962735a10
14364d000b2d
151cc9892b14
hex109d3bbdd5

71357414869 has 8 divisors (see below), whose sum is σ = 76962713912. Its totient is φ = 65768725440.

The previous prime is 71357414867. The next prime is 71357414893. The reversal of 71357414869 is 96841475317.

It can be written as a sum of positive squares in 4 ways, for example, as 17098700644 + 54258714225 = 130762^2 + 232935^2 .

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 71357414869 - 21 = 71357414867 is a prime.

It is a super-2 number, since 2×713574148692 (a number of 23 digits) 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 (71357414861) 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, 4143474 + ... + 4160659.

It is an arithmetic number, because the mean of its divisors is an integer number (9620339239).

Almost surely, 271357414869 is an apocalyptic number.

It is an amenable number.

71357414869 is a deficient number, since it is larger than the sum of its proper divisors (5605299043).

71357414869 is a wasteful number, since it uses less digits than its factorization.

71357414869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304807.

The product of its digits is 5080320, while the sum is 55.

The spelling of 71357414869 in words is "seventy-one billion, three hundred fifty-seven million, four hundred fourteen thousand, eight hundred sixty-nine".

Divisors: 1 13 661 8593 8304133 107953729 5489031913 71357414869