Search a number
-
+
74714771 = 499149729
BaseRepresentation
bin1000111010000…
…00111010010011
312012120220101202
410131000322103
5123111333041
611225221415
71565031215
oct435007223
9165526352
1074714771
11391a134a
122103186b
131262c831
149ccc5b5
15685ca9b
hex4740e93

74714771 has 4 divisors (see below), whose sum is σ = 74865000. Its totient is φ = 74564544.

The previous prime is 74714753. The next prime is 74714777. The reversal of 74714771 is 17741747.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17741747 = 19499103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74714771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74714777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74366 + ... + 75363.

It is an arithmetic number, because the mean of its divisors is an integer number (18716250).

Almost surely, 274714771 is an apocalyptic number.

74714771 is a deficient number, since it is larger than the sum of its proper divisors (150229).

74714771 is a wasteful number, since it uses less digits than its factorization.

74714771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150228.

The product of its digits is 38416, while the sum is 38.

The square root of 74714771 is about 8643.7706471192. The cubic root of 74714771 is about 421.1810502723.

The spelling of 74714771 in words is "seventy-four million, seven hundred fourteen thousand, seven hundred seventy-one".

Divisors: 1 499 149729 74714771