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42054318 = 2323476733
BaseRepresentation
bin1010000001101…
…1001010101110
32221010120200100
42200123022232
541231214233
64101211530
71020312225
oct240331256
987116610
1042054318
1121814039
1212100ba6
138935917
145829cbc
153a5a813
hex281b2ae

42054318 has 24 divisors (see below), whose sum is σ = 91393848. Its totient is φ = 13975632.

The previous prime is 42054283. The next prime is 42054319. The reversal of 42054318 is 81345024.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42054291 and 42054300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2880 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (3808077).

Almost surely, 242054318 is an apocalyptic number.

42054318 is an abundant number, since it is smaller than the sum of its proper divisors (49339530).

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

42054318 is a wasteful number, since it uses less digits than its factorization.

42054318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088 (or 7085 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 42054318 is about 6484.9300690139. The cubic root of 42054318 is about 347.7524497889.

The spelling of 42054318 in words is "forty-two million, fifty-four thousand, three hundred eighteen".

Divisors: 1 2 3 6 9 18 347 694 1041 2082 3123 6246 6733 13466 20199 40398 60597 121194 2336351 4672702 7009053 14018106 21027159 42054318