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42581230719 = 367425949741
BaseRepresentation
bin100111101010000010…
…100000010001111111
311001220120002122101020
4213222002200101333
51144201243340334
631321143315223
73035126326536
oct475202402177
9131816078336
1042581230719
1117070aa3975
12830444bb13
134027a83311
1420bd32531d
15119340ae49
hex9ea0a047f

42581230719 has 16 divisors (see below), whose sum is σ = 57637050240. Its totient is φ = 27956665440.

The previous prime is 42581230667. The next prime is 42581230789. The reversal of 42581230719 is 91703218524.

It is not a de Polignac number, because 42581230719 - 211 = 42581228671 is a prime.

It is a super-2 number, since 2×425812307192 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42581230789) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 831189 + ... + 880929.

It is an arithmetic number, because the mean of its divisors is an integer number (3602315640).

Almost surely, 242581230719 is an apocalyptic number.

42581230719 is a deficient number, since it is larger than the sum of its proper divisors (15055819521).

42581230719 is a wasteful number, since it uses less digits than its factorization.

42581230719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54070.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 42581230719 in words is "forty-two billion, five hundred eighty-one million, two hundred thirty thousand, seven hundred nineteen".

Divisors: 1 3 67 201 4259 12777 49741 149223 285353 856059 3332647 9997941 211846919 635540757 14193743573 42581230719