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420270486 = 23268326107
BaseRepresentation
bin11001000011001…
…101000110010110
31002021210221201120
4121003031012112
51330042123421
6105411504410
713262145246
oct3103150626
91067727646
10420270486
111a6260489
12b88b8106
13690bab7c
143db5db26
1526d698c6
hex190cd196

420270486 has 16 divisors (see below), whose sum is σ = 840886464. Its totient is φ = 140032584.

The previous prime is 420270469. The next prime is 420270509. The reversal of 420270486 is 684072024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3045 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (52555404).

Almost surely, 2420270486 is an apocalyptic number.

420270486 is an abundant number, since it is smaller than the sum of its proper divisors (420615978).

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

420270486 is a wasteful number, since it uses less digits than its factorization.

420270486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28795.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 420270486 is about 20500.4996524475. The cubic root of 420270486 is about 749.0479689160.

The spelling of 420270486 in words is "four hundred twenty million, two hundred seventy thousand, four hundred eighty-six".

Divisors: 1 2 3 6 2683 5366 8049 16098 26107 52214 78321 156642 70045081 140090162 210135243 420270486