Search a number
-
+
54181368 = 2332752519
BaseRepresentation
bin1100111010101…
…1110111111000
310202221200212100
43032223313320
5102332300433
65213143400
71225351113
oct316536770
9122850770
1054181368
112864729a
121618ab60
13b2c06a7
1472a557a
154b53b13
hex33abdf8

54181368 has 24 divisors (see below), whose sum is σ = 146741400. Its totient is φ = 18060432.

The previous prime is 54181339. The next prime is 54181409. The reversal of 54181368 is 86318145.

54181368 is a `hidden beast` number, since 541 + 81 + 36 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376188 + ... + 376331.

It is an arithmetic number, because the mean of its divisors is an integer number (6114225).

Almost surely, 254181368 is an apocalyptic number.

It is an amenable number.

54181368 is an abundant number, since it is smaller than the sum of its proper divisors (92560032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54181368 is a wasteful number, since it uses less digits than its factorization.

54181368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752531 (or 752524 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 54181368 is about 7360.7994131072. The cubic root of 54181368 is about 378.3990075765.

It can be divided in two parts, 5418 and 1368, that added together give a triangular number (6786 = T116).

The spelling of 54181368 in words is "fifty-four million, one hundred eighty-one thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 752519 1505038 2257557 3010076 4515114 6020152 6772671 9030228 13545342 18060456 27090684 54181368