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71429292868 = 22113158029409
BaseRepresentation
bin100001010000110000…
…1001000001101000100
320211101000211001002111
41002201201020031010
52132241344332433
652451505350404
75106040654153
oct1024141101504
9224330731074
1071429292868
1128324a78a4a
1211a15638404
1369745b128b
14365879159a
151cd0d3edcd
hex10a1848344

71429292868 has 12 divisors (see below), whose sum is σ = 126107469180. Its totient is φ = 35398587392.

The previous prime is 71429292841. The next prime is 71429292881. The reversal of 71429292868 is 86829292417.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9457173504 + 61972119364 = 97248^2 + 248942^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79014253 + ... + 79015156.

It is an arithmetic number, because the mean of its divisors is an integer number (10508955765).

Almost surely, 271429292868 is an apocalyptic number.

It is an amenable number.

71429292868 is a deficient number, since it is larger than the sum of its proper divisors (54678176312).

71429292868 is a wasteful number, since it uses less digits than its factorization.

71429292868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158029526 (or 158029524 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The spelling of 71429292868 in words is "seventy-one billion, four hundred twenty-nine million, two hundred ninety-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 113 226 452 158029409 316058818 632117636 17857323217 35714646434 71429292868