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42000619 = 103409997
BaseRepresentation
bin1010000000111…
…0000011101011
32221000212000111
42200032003223
541223004434
64100115151
71016666533
oct240160353
987025014
1042000619
1121787761
1212095ab7
13891734b
1458144c3
153a49964
hex280e0eb

42000619 has 8 divisors (see below), whose sum is σ = 42554720. Its totient is φ = 41449536.

The previous prime is 42000611. The next prime is 42000649. The reversal of 42000619 is 91600024.

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

It is a cyclic number.

It is not a de Polignac number, because 42000619 - 23 = 42000611 is a prime.

It is a super-2 number, since 2×420006192 = 3528103992766322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42000619.

It is not an unprimeable number, because it can be changed into a prime (42000611) by changing a digit.

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, 41629 + ... + 42625.

It is an arithmetic number, because the mean of its divisors is an integer number (5319340).

Almost surely, 242000619 is an apocalyptic number.

42000619 is a deficient number, since it is larger than the sum of its proper divisors (554101).

42000619 is a wasteful number, since it uses less digits than its factorization.

42000619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 42000619 is about 6480.7884551187. The cubic root of 42000619 is about 347.6043721473.

The spelling of 42000619 in words is "forty-two million, six hundred nineteen", and thus it is an aban number.

Divisors: 1 103 409 997 42127 102691 407773 42000619