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42286280 = 2351057157
BaseRepresentation
bin1010000101001…
…1110011001000
32221120100212112
42201103303020
541311130110
64110201452
71022266421
oct241236310
987510775
1042286280
1121962343
12121b3288
1389b738a
14588a648
153aa4405
hex2853cc8

42286280 has 16 divisors (see below), whose sum is σ = 95144220. Its totient is φ = 16914496.

The previous prime is 42286273. The next prime is 42286289. The reversal of 42286280 is 8268224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 114244 = 6494^2 + 338^2 .

It is not an unprimeable number, because it can be changed into a prime (42286289) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 528539 + ... + 528618.

Almost surely, 242286280 is an apocalyptic number.

42286280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42286280 is an abundant number, since it is smaller than the sum of its proper divisors (52857940).

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

42286280 is a wasteful number, since it uses less digits than its factorization.

42286280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057168 (or 1057164 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42286280 is about 6502.7901703807. The cubic root of 42286280 is about 348.3906521570.

The spelling of 42286280 in words is "forty-two million, two hundred eighty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1057157 2114314 4228628 5285785 8457256 10571570 21143140 42286280