Search a number
-
+
542387185 = 51031053179
BaseRepresentation
bin100000010101000…
…010101111110001
31101210121010100021
4200111002233301
52102322342220
6125453123441
716304133514
oct4025025761
91353533307
10542387185
1125918857a
12131789581
13884a6382
145206ad7b
153293c4aa
hex20542bf1

542387185 has 8 divisors (see below), whose sum is σ = 657184320. Its totient is φ = 429696624.

The previous prime is 542387179. The next prime is 542387189. The reversal of 542387185 is 581783245.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-542387185 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542387189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526075 + ... + 527104.

It is an arithmetic number, because the mean of its divisors is an integer number (82148040).

Almost surely, 2542387185 is an apocalyptic number.

It is an amenable number.

542387185 is a deficient number, since it is larger than the sum of its proper divisors (114797135).

542387185 is a wasteful number, since it uses less digits than its factorization.

542387185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053287.

The product of its digits is 268800, while the sum is 43.

The square root of 542387185 is about 23289.2074790019. The cubic root of 542387185 is about 815.5234871876.

The spelling of 542387185 in words is "five hundred forty-two million, three hundred eighty-seven thousand, one hundred eighty-five".

Divisors: 1 5 103 515 1053179 5265895 108477437 542387185