Search a number
-
+
74417 = 710631
BaseRepresentation
bin10010001010110001
310210002012
4102022301
54340132
61332305
7426650
oct221261
9123065
1074417
1150a02
1237095
1327b45
141d197
15170b2
hex122b1

74417 has 4 divisors (see below), whose sum is σ = 85056. Its totient is φ = 63780.

The previous prime is 74413. The next prime is 74419. The reversal of 74417 is 71447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71447 = 371931.

It is a cyclic number.

It is not a de Polignac number, because 74417 - 22 = 74413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74392 and 74401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5309 + ... + 5322.

It is an arithmetic number, because the mean of its divisors is an integer number (21264).

274417 is an apocalyptic number.

It is an amenable number.

74417 is a deficient number, since it is larger than the sum of its proper divisors (10639).

74417 is a wasteful number, since it uses less digits than its factorization.

74417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638.

The product of its digits is 784, while the sum is 23.

The square root of 74417 is about 272.7947946717. The cubic root of 74417 is about 42.0620775142.

The spelling of 74417 in words is "seventy-four thousand, four hundred seventeen", and thus it is an iban number.

Divisors: 1 7 10631 74417