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42793866 = 233792479
BaseRepresentation
bin1010001100111…
…1101110001010
32222112011011000
42203033232022
541423400431
64125115430
71026512313
oct243175612
988464130
1042793866
1122179735
12123b8b76
138b3441b
14597d60a
153b549e6
hex28cfb8a

42793866 has 16 divisors (see below), whose sum is σ = 95097600. Its totient is φ = 14264604.

The previous prime is 42793831. The next prime is 42793889. The reversal of 42793866 is 66839724.

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, 396186 + ... + 396293.

It is an arithmetic number, because the mean of its divisors is an integer number (5943600).

Almost surely, 242793866 is an apocalyptic number.

42793866 is an abundant number, since it is smaller than the sum of its proper divisors (52303734).

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

42793866 is a wasteful number, since it uses less digits than its factorization.

42793866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792490 (or 792484 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 42793866 is about 6541.7020720910. The cubic root of 42793866 is about 349.7790878054.

The spelling of 42793866 in words is "forty-two million, seven hundred ninety-three thousand, eight hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 54 792479 1584958 2377437 4754874 7132311 14264622 21396933 42793866