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54253890 = 2325602821
BaseRepresentation
bin1100111011110…
…1100101000010
310210002101100100
43032331211002
5102342111030
65214503230
71226102415
oct316754502
9123071310
1054253890
1128696829
1216204b16
13b3176c2
1472c3b7c
154b6a360
hex33bd942

54253890 has 24 divisors (see below), whose sum is σ = 141060348. Its totient is φ = 14467680.

The previous prime is 54253889. The next prime is 54253907. The reversal of 54253890 is 9835245.

It can be written as a sum of positive squares in 2 ways, for example, as 53890281 + 363609 = 7341^2 + 603^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301321 + ... + 301500.

Almost surely, 254253890 is an apocalyptic number.

54253890 is an abundant number, since it is smaller than the sum of its proper divisors (86806458).

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

54253890 is a wasteful number, since it uses less digits than its factorization.

54253890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602834 (or 602831 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 54253890 is about 7365.7239970012. The cubic root of 54253890 is about 378.5677618862.

The spelling of 54253890 in words is "fifty-four million, two hundred fifty-three thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 602821 1205642 1808463 3014105 3616926 5425389 6028210 9042315 10850778 18084630 27126945 54253890