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54401312 = 257242863
BaseRepresentation
bin1100111110000…
…1100100100000
310210100212120102
43033201210200
5102411320222
65222001532
71230255260
oct317414440
9123325512
1054401312
1128787569
12162762a8
13b369834
1473217a0
154b98d92
hex33e1920

54401312 has 24 divisors (see below), whose sum is σ = 122403456. Its totient is φ = 23314752.

The previous prime is 54401299. The next prime is 54401317. The reversal of 54401312 is 21310445.

54401312 is a modest number, since divided by 1312 gives 544 as remainder.

It is not an unprimeable number, because it can be changed into a prime (54401317) by changing a digit.

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, 121208 + ... + 121655.

It is an arithmetic number, because the mean of its divisors is an integer number (5100144).

Almost surely, 254401312 is an apocalyptic number.

It is an amenable number.

54401312 is an abundant number, since it is smaller than the sum of its proper divisors (68002144).

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

54401312 is a wasteful number, since it uses less digits than its factorization.

54401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242880 (or 242872 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54401312 is about 7375.7245067858. The cubic root of 54401312 is about 378.9103409673.

Adding to 54401312 its reverse (21310445), we get a palindrome (75711757).

The spelling of 54401312 in words is "fifty-four million, four hundred one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 242863 485726 971452 1700041 1942904 3400082 3885808 6800164 7771616 13600328 27200656 54401312