Search a number
-
+
54642045011 = 78041700171
BaseRepresentation
bin110010111000111010…
…110111000001010011
312020001002122111020212
4302320322313001103
51343401330420021
641034024354335
73643036501451
oct627072670123
9166032574225
1054642045011
11211a0012194
12a70b6159ab
1351ca6bb618
1429050539d1
15164c19085b
hexcb8eb7053

54642045011 has 4 divisors (see below), whose sum is σ = 54642823224. Its totient is φ = 54641266800.

The previous prime is 54642044939. The next prime is 54642045013. The reversal of 54642045011 is 11054024645.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54642045011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54642045013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272045 + ... + 428126.

It is an arithmetic number, because the mean of its divisors is an integer number (13660705806).

Almost surely, 254642045011 is an apocalyptic number.

54642045011 is a deficient number, since it is larger than the sum of its proper divisors (778213).

54642045011 is an equidigital number, since it uses as much as digits as its factorization.

54642045011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778212.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 54642045011 its reverse (11054024645), we get a palindrome (65696069656).

The spelling of 54642045011 in words is "fifty-four billion, six hundred forty-two million, forty-five thousand, eleven".

Divisors: 1 78041 700171 54642045011