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42319390287 = 363732213473
BaseRepresentation
bin100111011010011011…
…101010011001001111
311001020022101202211110
4213122123222121033
51143132230442122
631235151223103
73025466611416
oct473233523117
9131208352743
1042319390287
1116a47213319
128250817a93
133cb5756455
14209664647d
15117a43890c
hex9da6ea64f

42319390287 has 8 divisors (see below), whose sum is σ = 56434733104. Its totient is φ = 28208487168.

The previous prime is 42319390279. The next prime is 42319390303. The reversal of 42319390287 is 78209391324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42319390287 - 23 = 42319390279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42319390277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087618 + ... + 1125855.

It is an arithmetic number, because the mean of its divisors is an integer number (7054341638).

Almost surely, 242319390287 is an apocalyptic number.

42319390287 is a deficient number, since it is larger than the sum of its proper divisors (14115342817).

42319390287 is a wasteful number, since it uses less digits than its factorization.

42319390287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219849.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 42319390287 in words is "forty-two billion, three hundred nineteen million, three hundred ninety thousand, two hundred eighty-seven".

Divisors: 1 3 6373 19119 2213473 6640419 14106463429 42319390287