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57426258 = 2310789449
BaseRepresentation
bin1101101100010…
…0000101010010
311000001120000110
43123010011102
5104200120013
65410502150
71265054331
oct333040522
9130046013
1057426258
112a46321a
1217294956
13bb88646
1478abd18
1550952c3
hex36c4152

57426258 has 16 divisors (see below), whose sum is σ = 115927200. Its totient is φ = 18962976.

The previous prime is 57426247. The next prime is 57426283. The reversal of 57426258 is 85262475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44083 + ... + 45366.

It is an arithmetic number, because the mean of its divisors is an integer number (7245450).

Almost surely, 257426258 is an apocalyptic number.

57426258 is an abundant number, since it is smaller than the sum of its proper divisors (58500942).

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

57426258 is a wasteful number, since it uses less digits than its factorization.

57426258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89561.

The product of its digits is 134400, while the sum is 39.

The square root of 57426258 is about 7578.0114805930. The cubic root of 57426258 is about 385.8070617118.

The spelling of 57426258 in words is "fifty-seven million, four hundred twenty-six thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 107 214 321 642 89449 178898 268347 536694 9571043 19142086 28713129 57426258