Search a number
-
+
54508169 = 192868851
BaseRepresentation
bin1100111111101…
…1101010001001
310210120022011002
43033323222021
5102423230134
65224144345
71231211642
oct317735211
9123508132
1054508169
112884a881
12163080b5
13b3a6371
14734c6c9
154bba87e
hex33fba89

54508169 has 4 divisors (see below), whose sum is σ = 57377040. Its totient is φ = 51639300.

The previous prime is 54508163. The next prime is 54508211. The reversal of 54508169 is 96180545.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54508169 is a prime.

It is a super-2 number, since 2×545081692 = 5942280975465122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54508163) 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, 1434407 + ... + 1434444.

It is an arithmetic number, because the mean of its divisors is an integer number (14344260).

Almost surely, 254508169 is an apocalyptic number.

It is an amenable number.

54508169 is a deficient number, since it is larger than the sum of its proper divisors (2868871).

54508169 is a wasteful number, since it uses less digits than its factorization.

54508169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868870.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 54508169 is about 7382.9647838792. The cubic root of 54508169 is about 379.1582684504.

The spelling of 54508169 in words is "fifty-four million, five hundred eight thousand, one hundred sixty-nine".

Divisors: 1 19 2868851 54508169