Search a number
-
+
55713297 = 318571099
BaseRepresentation
bin1101010010000…
…1111000010001
310212211112021110
43110201320101
5103230311142
65310043533
71244361303
oct324417021
9125745243
1055713297
11294a3252
12167a95a9
13b708a63
147583973
154d5799c
hex3521e11

55713297 has 4 divisors (see below), whose sum is σ = 74284400. Its totient is φ = 37142196.

The previous prime is 55713271. The next prime is 55713319. The reversal of 55713297 is 79231755.

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.

It is not a de Polignac number, because 55713297 - 215 = 55680529 is a prime.

It is a super-2 number, since 2×557132972 = 6207942925220418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55713227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9285547 + ... + 9285552.

It is an arithmetic number, because the mean of its divisors is an integer number (18571100).

Almost surely, 255713297 is an apocalyptic number.

It is an amenable number.

55713297 is a deficient number, since it is larger than the sum of its proper divisors (18571103).

55713297 is a wasteful number, since it uses less digits than its factorization.

55713297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571102.

The product of its digits is 66150, while the sum is 39.

The square root of 55713297 is about 7464.1340422048. The cubic root of 55713297 is about 381.9322106804.

The spelling of 55713297 in words is "fifty-five million, seven hundred thirteen thousand, two hundred ninety-seven".

Divisors: 1 3 18571099 55713297