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74082605 = 553279557
BaseRepresentation
bin1000110101001…
…10100100101101
312011101210020012
410122212210231
5122431120410
611203503005
71556456162
oct432464455
9164353205
1074082605
11388aa3a3
1220987a65
131246ab7c
149ba6069
156785605
hex46a692d

74082605 has 8 divisors (see below), whose sum is σ = 90576792. Its totient is φ = 58147648.

The previous prime is 74082599. The next prime is 74082611. The reversal of 74082605 is 50628047.

It is an interprime number because it is at equal distance from previous prime (74082599) and next prime (74082611).

It can be written as a sum of positive squares in 4 ways, for example, as 6086089 + 67996516 = 2467^2 + 8246^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 74082605 - 212 = 74078509 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 139514 + ... + 140043.

It is an arithmetic number, because the mean of its divisors is an integer number (11322099).

Almost surely, 274082605 is an apocalyptic number.

It is an amenable number.

74082605 is a deficient number, since it is larger than the sum of its proper divisors (16494187).

74082605 is a wasteful number, since it uses less digits than its factorization.

74082605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279615.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 74082605 is about 8607.1252459808. The cubic root of 74082605 is about 419.9898051191.

The spelling of 74082605 in words is "seventy-four million, eighty-two thousand, six hundred five".

Divisors: 1 5 53 265 279557 1397785 14816521 74082605