Search a number
-
+
42010563 = 372000503
BaseRepresentation
bin1010000001000…
…0011111000011
32221001100122210
42200100133003
541223314223
64100233203
71020040530
oct240203703
987040583
1042010563
1121794181
121209b803
13891ba2a
145817d87
153a4c893
hex28107c3

42010563 has 8 divisors (see below), whose sum is σ = 64016128. Its totient is φ = 24006024.

The previous prime is 42010523. The next prime is 42010567. The reversal of 42010563 is 36501024.

It is a happy number.

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

It is not a de Polignac number, because 42010563 - 224 = 25233347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2000503 = 42010563 / (4 + 2 + 0 + 1 + 0 + 5 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42010567) 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, 1000231 + ... + 1000272.

It is an arithmetic number, because the mean of its divisors is an integer number (8002016).

Almost surely, 242010563 is an apocalyptic number.

42010563 is a deficient number, since it is larger than the sum of its proper divisors (22005565).

42010563 is a wasteful number, since it uses less digits than its factorization.

42010563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000513.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42010563 is about 6481.5556003169. Note that the first 3 decimals coincide. The cubic root of 42010563 is about 347.6318027361.

Adding to 42010563 its reverse (36501024), we get a palindrome (78511587).

The spelling of 42010563 in words is "forty-two million, ten thousand, five hundred sixty-three".

Divisors: 1 3 7 21 2000503 6001509 14003521 42010563