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71014554 = 232131571933
BaseRepresentation
bin1000011101110…
…01100010011010
311221121220122200
410032321202122
5121134431204
611014031030
71521420342
oct416714232
9157556580
1071014554
11370a4316
121b948476
1311935560
149607d22
15637b539
hex43b989a

71014554 has 48 divisors (see below), whose sum is σ = 166842312. Its totient is φ = 21700224.

The previous prime is 71014529. The next prime is 71014589. The reversal of 71014554 is 45541017.

It is a happy number.

71014554 is a `hidden beast` number, since 7 + 101 + 4 + 554 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 48233025 + 22781529 = 6945^2 + 4773^2 .

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 23 ways as a sum of consecutive naturals, for example, 35772 + ... + 37704.

Almost surely, 271014554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71014554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83421156).

71014554 is an abundant number, since it is smaller than the sum of its proper divisors (95827758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71014554 is a wasteful number, since it uses less digits than its factorization.

71014554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 71014554 is about 8427.0133499360. The cubic root of 71014554 is about 414.1100666531.

The spelling of 71014554 in words is "seventy-one million, fourteen thousand, five hundred fifty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 157 234 314 471 942 1413 1933 2041 2826 3866 4082 5799 6123 11598 12246 17397 18369 25129 34794 36738 50258 75387 150774 226161 303481 452322 606962 910443 1820886 2731329 3945253 5462658 7890506 11835759 23671518 35507277 71014554