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42453380 = 22513915271
BaseRepresentation
bin1010000111110…
…0100110000100
32221212212002102
42201330212010
541332002010
64113531232
71023563534
oct241744604
987785072
1042453380
1121a66942
1212273b18
138a45458
1458d14c4
153ad8ba5
hex287c984

42453380 has 24 divisors (see below), whose sum is σ = 89799360. Its totient is φ = 16858080.

The previous prime is 42453373. The next prime is 42453401. The reversal of 42453380 is 8335424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856 + ... + 10415.

It is an arithmetic number, because the mean of its divisors is an integer number (3741640).

Almost surely, 242453380 is an apocalyptic number.

It is an amenable number.

42453380 is an abundant number, since it is smaller than the sum of its proper divisors (47345980).

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

42453380 is a wasteful number, since it uses less digits than its factorization.

42453380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419 (or 15417 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 42453380 is about 6515.6258333333. The cubic root of 42453380 is about 348.8489533914.

The spelling of 42453380 in words is "forty-two million, four hundred fifty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 15271 30542 61084 76355 152710 305420 2122669 4245338 8490676 10613345 21226690 42453380