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42247236560 = 245528090457
BaseRepresentation
bin100111010110001000…
…011010101111010000
311001001021121222112012
4213112020122233100
51143010243032220
631224052522052
73023632404614
oct472610325720
9131037558465
1042247236560
1116a0a511141
128230620328
133ca3812539
14208ac23344
151173e34ac5
hex9d621abd0

42247236560 has 20 divisors (see below), whose sum is σ = 98224825188. Its totient is φ = 16898894592.

The previous prime is 42247236541. The next prime is 42247236599. The reversal of 42247236560 is 6563274224.

It can be written as a sum of positive squares in 2 ways, for example, as 10125994384 + 32121242176 = 100628^2 + 179224^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264045149 + ... + 264045308.

Almost surely, 242247236560 is an apocalyptic number.

42247236560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42247236560 is an abundant number, since it is smaller than the sum of its proper divisors (55977588628).

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

42247236560 is a wasteful number, since it uses less digits than its factorization.

42247236560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528090470 (or 528090464 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 42247236560 in words is "forty-two billion, two hundred forty-seven million, two hundred thirty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 528090457 1056180914 2112361828 2640452285 4224723656 5280904570 8449447312 10561809140 21123618280 42247236560