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54100240 = 245676253
BaseRepresentation
bin1100111001100…
…0000100010000
310202210120120121
43032120010100
5102322201430
65211320024
71224562435
oct316300420
9122716517
1054100240
11285a1347
1216150014
13b29279c
147283b8c
154b39a7a
hex3398110

54100240 has 20 divisors (see below), whose sum is σ = 125783244. Its totient is φ = 21640064.

The previous prime is 54100231. The next prime is 54100259. The reversal of 54100240 is 4200145.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 40908816 = 3632^2 + 6396^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338047 + ... + 338206.

Almost surely, 254100240 is an apocalyptic number.

It is an amenable number.

54100240 is an abundant number, since it is smaller than the sum of its proper divisors (71683004).

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

54100240 is a wasteful number, since it uses less digits than its factorization.

54100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676266 (or 676260 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 54100240 is about 7355.2865341875. The cubic root of 54100240 is about 378.2100490793.

Adding to 54100240 its reverse (4200145), we get a palindrome (58300385).

The spelling of 54100240 in words is "fifty-four million, one hundred thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 676253 1352506 2705012 3381265 5410024 6762530 10820048 13525060 27050120 54100240