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42869180 = 2252143459
BaseRepresentation
bin1010001110001…
…0000110111100
32222122222110102
42203202012330
541433303210
64130500232
71030245014
oct243420674
988588412
1042869180
1122220282
1212434678
138b5c7a3
14599cc44
153b6bea5
hex28e21bc

42869180 has 12 divisors (see below), whose sum is σ = 90025320. Its totient is φ = 17147664.

The previous prime is 42869143. The next prime is 42869201. The reversal of 42869180 is 8196824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071710 + ... + 1071749.

It is an arithmetic number, because the mean of its divisors is an integer number (7502110).

Almost surely, 242869180 is an apocalyptic number.

It is an amenable number.

42869180 is an abundant number, since it is smaller than the sum of its proper divisors (47156140).

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

42869180 is a wasteful number, since it uses less digits than its factorization.

42869180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143468 (or 2143466 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 42869180 is about 6547.4559945066. The cubic root of 42869180 is about 349.9841625487.

The spelling of 42869180 in words is "forty-two million, eight hundred sixty-nine thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2143459 4286918 8573836 10717295 21434590 42869180