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74164205 = 514832841
BaseRepresentation
bin1000110101110…
…10011111101101
312011112221011102
410122322133231
5122441223310
611205332445
71560246113
oct432723755
9164487142
1074164205
1138955735
1220a07125
131249905b
149bc7ab3
15679e8a5
hex46ba7ed

74164205 has 4 divisors (see below), whose sum is σ = 88997052. Its totient is φ = 59331360.

The previous prime is 74164193. The next prime is 74164229. The reversal of 74164205 is 50246147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50246147 = 77178021.

It can be written as a sum of positive squares in 2 ways, for example, as 25694761 + 48469444 = 5069^2 + 6962^2 .

It is not a de Polignac number, because 74164205 - 26 = 74164141 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7416416 + ... + 7416425.

It is an arithmetic number, because the mean of its divisors is an integer number (22249263).

Almost surely, 274164205 is an apocalyptic number.

It is an amenable number.

74164205 is a deficient number, since it is larger than the sum of its proper divisors (14832847).

74164205 is a wasteful number, since it uses less digits than its factorization.

74164205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14832846.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 74164205 is about 8611.8642000440. The cubic root of 74164205 is about 420.1439510344.

It can be divided in two parts, 741 and 64205, that added together give a palindrome (64946).

The spelling of 74164205 in words is "seventy-four million, one hundred sixty-four thousand, two hundred five".

Divisors: 1 5 14832841 74164205