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52428144 = 2431957487
BaseRepresentation
bin1100011111111…
…1110101110000
310122122121220010
43013333311300
5101410200034
65111414520
71204426506
oct307776560
9118577803
1052428144
112765a04a
1215684440
13ab28692
146d6a676
1549093e9
hex31ffd70

52428144 has 40 divisors (see below), whose sum is σ = 142570240. Its totient is φ = 16555968.

The previous prime is 52428139. The next prime is 52428151. The reversal of 52428144 is 44182425.

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 7 ways as a sum of consecutive naturals, for example, 27832 + ... + 29655.

It is an arithmetic number, because the mean of its divisors is an integer number (3564256).

Almost surely, 252428144 is an apocalyptic number.

It is an amenable number.

52428144 is an abundant number, since it is smaller than the sum of its proper divisors (90142096).

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

52428144 is a wasteful number, since it uses less digits than its factorization.

52428144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57517 (or 57511 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 52428144 is about 7240.7281401804. The cubic root of 52428144 is about 374.2727094857.

The spelling of 52428144 in words is "fifty-two million, four hundred twenty-eight thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 57487 114974 172461 229948 344922 459896 689844 919792 1092253 1379688 2184506 2759376 3276759 4369012 6553518 8738024 13107036 17476048 26214072 52428144