Search a number
-
+
42830887 = 118094813
BaseRepresentation
bin1010001101100…
…0110000100111
32222121000221011
42203120300213
541431042022
64130003051
71030025251
oct243306047
988530834
1042830887
11221a4530
1212416487
138b48228
14598ccd1
153b60977
hex28d8c27

42830887 has 8 divisors (see below), whose sum is σ = 46792080. Its totient is φ = 38880960.

The previous prime is 42830869. The next prime is 42830897. The reversal of 42830887 is 78803824.

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 42830887 - 211 = 42828839 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 (42830857) 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, 6493 + ... + 11305.

It is an arithmetic number, because the mean of its divisors is an integer number (5849010).

Almost surely, 242830887 is an apocalyptic number.

42830887 is a deficient number, since it is larger than the sum of its proper divisors (3961193).

42830887 is a wasteful number, since it uses less digits than its factorization.

42830887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5633.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 42830887 is about 6544.5310756387. The cubic root of 42830887 is about 349.8799234352.

The spelling of 42830887 in words is "forty-two million, eight hundred thirty thousand, eight hundred eighty-seven".

Divisors: 1 11 809 4813 8899 52943 3893717 42830887