Search a number
-
+
54879245 = 510975849
BaseRepresentation
bin1101000101011…
…0010000001101
310211021011011122
43101112100031
5103022113440
65240130325
71234315541
oct321262015
9124234148
1054879245
1128a83653
12164669a5
13b4a6235
147407a21
154c407b5
hex345640d

54879245 has 4 divisors (see below), whose sum is σ = 65855100. Its totient is φ = 43903392.

The previous prime is 54879191. The next prime is 54879257. The reversal of 54879245 is 54297845.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39778249 + 15100996 = 6307^2 + 3886^2 .

It is a cyclic number.

It is not a de Polignac number, because 54879245 - 210 = 54878221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54879196 and 54879205.

It is a congruent number.

It is an unprimeable number.

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, 5487920 + ... + 5487929.

It is an arithmetic number, because the mean of its divisors is an integer number (16463775).

Almost surely, 254879245 is an apocalyptic number.

It is an amenable number.

54879245 is a deficient number, since it is larger than the sum of its proper divisors (10975855).

54879245 is a wasteful number, since it uses less digits than its factorization.

54879245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10975854.

The product of its digits is 403200, while the sum is 44.

The square root of 54879245 is about 7408.0527130954. The cubic root of 54879245 is about 380.0167236407.

The spelling of 54879245 in words is "fifty-four million, eight hundred seventy-nine thousand, two hundred forty-five".

Divisors: 1 5 10975849 54879245