Search a number
-
+
542418881 = 17139922807
BaseRepresentation
bin100000010101001…
…010011111000001
31101210122201211012
4200111022133001
52102324401011
6125453530305
716304325104
oct4025123701
91353581735
10542418881
112591aa374
121317a3995
13884b7924
145207873b
1532946a8b
hex2054a7c1

542418881 has 8 divisors (see below), whose sum is σ = 574761600. Its totient is φ = 510124608.

The previous prime is 542418857. The next prime is 542418883. The reversal of 542418881 is 188814245.

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 542418881 - 26 = 542418817 is a prime.

It is a super-2 number, since 2×5424188812 = 588436484930584322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542418883) 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, 12380 + ... + 35186.

It is an arithmetic number, because the mean of its divisors is an integer number (71845200).

Almost surely, 2542418881 is an apocalyptic number.

It is an amenable number.

542418881 is a deficient number, since it is larger than the sum of its proper divisors (32342719).

542418881 is a wasteful number, since it uses less digits than its factorization.

542418881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24223.

The product of its digits is 81920, while the sum is 41.

The square root of 542418881 is about 23289.8879559349. The cubic root of 542418881 is about 815.5393727208.

The spelling of 542418881 in words is "five hundred forty-two million, four hundred eighteen thousand, eight hundred eighty-one".

Divisors: 1 17 1399 22807 23783 387719 31906993 542418881