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74008085 = 5137108041
BaseRepresentation
bin1000110100101…
…00011000010101
312011021000000012
410122110120111
5122421224320
611202130005
71556026004
oct432243025
9164230005
1074008085
1138859408
1220950905
1312442c88
149b86c3b
15676d4c5
hex4694615

74008085 has 8 divisors (see below), whose sum is σ = 89458776. Its totient is φ = 58773760.

The previous prime is 74008079. The next prime is 74008093. The reversal of 74008085 is 58080047.

It can be written as a sum of positive squares in 4 ways, for example, as 9591409 + 64416676 = 3097^2 + 8026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74008085 - 216 = 73942549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 53336 + ... + 54705.

It is an arithmetic number, because the mean of its divisors is an integer number (11182347).

Almost surely, 274008085 is an apocalyptic number.

It is an amenable number.

74008085 is a deficient number, since it is larger than the sum of its proper divisors (15450691).

74008085 is a wasteful number, since it uses less digits than its factorization.

74008085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108183.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 74008085 is about 8602.7951852872. The cubic root of 74008085 is about 419.8489347115.

The spelling of 74008085 in words is "seventy-four million, eight thousand, eighty-five".

Divisors: 1 5 137 685 108041 540205 14801617 74008085