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54428142 = 2313169247
BaseRepresentation
bin1100111110100…
…0000111101110
310210102020101010
43033220013232
5102413200032
65222330050
71230426426
oct317500756
9123366333
1054428142
11287a573a
1216289926
13b378b02
14732b486
154ba1ccc
hex33e81ee

54428142 has 16 divisors (see below), whose sum is σ = 109688832. Its totient is φ = 18003960.

The previous prime is 54428117. The next prime is 54428161. The reversal of 54428142 is 24182445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33838 + ... + 35409.

It is an arithmetic number, because the mean of its divisors is an integer number (6855552).

Almost surely, 254428142 is an apocalyptic number.

54428142 is an abundant number, since it is smaller than the sum of its proper divisors (55260690).

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

54428142 is a wasteful number, since it uses less digits than its factorization.

54428142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69383.

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

The square root of 54428142 is about 7377.5430869633. The cubic root of 54428142 is about 378.9726219018.

The spelling of 54428142 in words is "fifty-four million, four hundred twenty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 131 262 393 786 69247 138494 207741 415482 9071357 18142714 27214071 54428142