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54400144 = 243798971
BaseRepresentation
bin1100111110000…
…1010010010000
310210100210222011
43033201102100
5102411301034
65221552304
71230252001
oct317412220
9123323864
1054400144
11287866a7
1216275694
13b369146
1473211a8
154b98864
hex33e1490

54400144 has 20 divisors (see below), whose sum is σ = 105690160. Its totient is φ = 27125280.

The previous prime is 54400127. The next prime is 54400163. The reversal of 54400144 is 44100445.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (5284508).

Almost surely, 254400144 is an apocalyptic number.

It is an amenable number.

54400144 is a deficient number, since it is larger than the sum of its proper divisors (51290016).

54400144 is a wasteful number, since it uses less digits than its factorization.

54400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358 (or 9352 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 54400144 is about 7375.6453276985. The cubic root of 54400144 is about 378.9076292040.

Adding to 54400144 its reverse (44100445), we get a palindrome (98500589).

The spelling of 54400144 in words is "fifty-four million, four hundred thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 379 758 1516 3032 6064 8971 17942 35884 71768 143536 3400009 6800018 13600036 27200072 54400144