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54254140 = 22517159571
BaseRepresentation
bin1100111011110…
…1101000111100
310210002101200121
43032331220330
5102342113030
65214504324
71226103223
oct316755074
9123071617
1054254140
1128696a36
12162050a4
13b317855
1472c3cba
154b6a47a
hex33bda3c

54254140 has 24 divisors (see below), whose sum is σ = 120636432. Its totient is φ = 20424960.

The previous prime is 54254131. The next prime is 54254141. The reversal of 54254140 is 4145245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54254141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79446 + ... + 80125.

It is an arithmetic number, because the mean of its divisors is an integer number (5026518).

Almost surely, 254254140 is an apocalyptic number.

It is an amenable number.

54254140 is an abundant number, since it is smaller than the sum of its proper divisors (66382292).

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

54254140 is a wasteful number, since it uses less digits than its factorization.

54254140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159597 (or 159595 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 54254140 is about 7365.7409674791. The cubic root of 54254140 is about 378.5683433609.

Adding to 54254140 its reverse (4145245), we get a palindrome (58399385).

The spelling of 54254140 in words is "fifty-four million, two hundred fifty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 159571 319142 638284 797855 1595710 2712707 3191420 5425414 10850828 13563535 27127070 54254140