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71209468 = 22112167881
BaseRepresentation
bin1000011111010…
…01000111111100
311221222211000201
410033221013330
5121212200333
611022133244
71523161531
oct417510774
9157884021
1071209468
1137217800
121ba21224
13119a31a5
149658d88
1563b917d
hex43e91fc

71209468 has 36 divisors (see below), whose sum is σ = 137951856. Its totient is φ = 32137600.

The previous prime is 71209433. The next prime is 71209483. The reversal of 71209468 is 86490217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80388 + ... + 81268.

It is an arithmetic number, because the mean of its divisors is an integer number (3831996).

Almost surely, 271209468 is an apocalyptic number.

It is an amenable number.

71209468 is a deficient number, since it is larger than the sum of its proper divisors (66742388).

71209468 is a wasteful number, since it uses less digits than its factorization.

71209468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 71209468 is about 8438.5702580473. The cubic root of 71209468 is about 414.4885905393.

The spelling of 71209468 in words is "seventy-one million, two hundred nine thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 22 44 121 167 242 334 484 668 881 1762 1837 3524 3674 7348 9691 19382 20207 38764 40414 80828 106601 147127 213202 294254 426404 588508 1618397 3236794 6473588 17802367 35604734 71209468