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54481269 = 318160423
BaseRepresentation
bin1100111111010…
…1000101110101
310210111221020210
43033311011311
5102421400034
65223420033
71231040343
oct317650565
9123457223
1054481269
1128831647
12162b4619
13b39704b
147342993
154bb28e9
hex33f5175

54481269 has 4 divisors (see below), whose sum is σ = 72641696. Its totient is φ = 36320844.

The previous prime is 54481241. The next prime is 54481321. The reversal of 54481269 is 96218445.

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 54481269 - 25 = 54481237 is a prime.

It is a super-2 number, since 2×544812692 = 5936417343700722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54481769) 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, 9080209 + ... + 9080214.

It is an arithmetic number, because the mean of its divisors is an integer number (18160424).

Almost surely, 254481269 is an apocalyptic number.

It is an amenable number.

54481269 is a deficient number, since it is larger than the sum of its proper divisors (18160427).

54481269 is a wasteful number, since it uses less digits than its factorization.

54481269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18160426.

The product of its digits is 69120, while the sum is 39.

The square root of 54481269 is about 7381.1427976974. The cubic root of 54481269 is about 379.0958861452.

The spelling of 54481269 in words is "fifty-four million, four hundred eighty-one thousand, two hundred sixty-nine".

Divisors: 1 3 18160423 54481269