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42843231580 = 2255340418143
BaseRepresentation
bin100111111001101001…
…111101010101011100
311002120211002122222211
4213321221331111130
51200220331402310
631403143050204
73044460313462
oct477151752534
9132524078884
1042843231580
1117195984006
128378140964
13406a138206
142106046832
1511ab410c8a
hex9f9a7d55c

42843231580 has 24 divisors (see below), whose sum is σ = 91668350592. Its totient is φ = 16813947072.

The previous prime is 42843231491. The next prime is 42843231631. The reversal of 42843231580 is 8513234824.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 20208012 + ... + 20210131.

It is an arithmetic number, because the mean of its divisors is an integer number (3819514608).

Almost surely, 242843231580 is an apocalyptic number.

It is an amenable number.

42843231580 is an abundant number, since it is smaller than the sum of its proper divisors (48825119012).

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

42843231580 is a wasteful number, since it uses less digits than its factorization.

42843231580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40418205 (or 40418203 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 42843231580 in words is "forty-two billion, eight hundred forty-three million, two hundred thirty-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 40418143 80836286 161672572 202090715 404181430 808362860 2142161579 4284323158 8568646316 10710807895 21421615790 42843231580