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71429554 = 272728873
BaseRepresentation
bin1000100000111…
…10110110110010
311222101222221001
410100132312302
5121241221204
611030552214
71525066300
oct420366662
9158358831
1071429554
1137358099
121bb0866a
1311a4c411
1496b5270
15640e4a4
hex441edb2

71429554 has 12 divisors (see below), whose sum is σ = 124637454. Its totient is φ = 30612624.

The previous prime is 71429537. The next prime is 71429587. The reversal of 71429554 is 45592417.

It can be written as a sum of positive squares in only one way, i.e., 52896529 + 18533025 = 7273^2 + 4305^2 .

It is a super-3 number, since 3×714295543 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364339 + ... + 364534.

Almost surely, 271429554 is an apocalyptic number.

71429554 is a deficient number, since it is larger than the sum of its proper divisors (53207900).

71429554 is a wasteful number, since it uses less digits than its factorization.

71429554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728889 (or 728882 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 71429554 is about 8451.6006767949. The cubic root of 71429554 is about 414.9151691900.

The spelling of 71429554 in words is "seventy-one million, four hundred twenty-nine thousand, five hundred fifty-four".

Divisors: 1 2 7 14 49 98 728873 1457746 5102111 10204222 35714777 71429554