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42369013 = 231842131
BaseRepresentation
bin1010000110011…
…1111111110101
32221201120100201
42201213333311
541321302023
64112040501
71023062551
oct241477765
987646321
1042369013
1121a09515
1212233131
138a15c2b
1458ac861
153abdbad
hex2867ff5

42369013 has 4 divisors (see below), whose sum is σ = 44211168. Its totient is φ = 40526860.

The previous prime is 42368983. The next prime is 42369017. The reversal of 42369013 is 31096324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42369013 - 217 = 42237941 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 (42369017) 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 3 ways as a sum of consecutive naturals, for example, 921043 + ... + 921088.

It is an arithmetic number, because the mean of its divisors is an integer number (11052792).

Almost surely, 242369013 is an apocalyptic number.

It is an amenable number.

42369013 is a deficient number, since it is larger than the sum of its proper divisors (1842155).

42369013 is a wasteful number, since it uses less digits than its factorization.

42369013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842154.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 42369013 is about 6509.1484082021. The cubic root of 42369013 is about 348.6177126172.

The spelling of 42369013 in words is "forty-two million, three hundred sixty-nine thousand, thirteen".

Divisors: 1 23 1842131 42369013