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71042108 = 2227165537
BaseRepresentation
bin1000011110000…
…00010000111100
311221200022110012
410033000100330
5121141321413
611014402352
71521563564
oct417002074
9157608405
1071042108
1137112a95
121b9603b8
1311944c67
149613da4
1563847a8
hex43c043c

71042108 has 12 divisors (see below), whose sum is σ = 124784352. Its totient is φ = 35389440.

The previous prime is 71042047. The next prime is 71042113. The reversal of 71042108 is 80124017.

It is a super-2 number, since 2×710421082 = 10093962218167328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31685 + ... + 33852.

It is an arithmetic number, because the mean of its divisors is an integer number (10398696).

Almost surely, 271042108 is an apocalyptic number.

It is an amenable number.

71042108 is a deficient number, since it is larger than the sum of its proper divisors (53742244).

71042108 is a wasteful number, since it uses less digits than its factorization.

71042108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65812 (or 65810 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 71042108 is about 8428.6480529205. The cubic root of 71042108 is about 414.1636186491.

The spelling of 71042108 in words is "seventy-one million, forty-two thousand, one hundred eight".

Divisors: 1 2 4 271 542 1084 65537 131074 262148 17760527 35521054 71042108