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542860681 = 11431147697
BaseRepresentation
bin100000010110110…
…110010110001001
31101211111011212011
4200112312112021
52102433020211
6125511215521
716311145126
oct4026662611
91354434764
10542860681
112594812a0
121319775a1
1388610a4c
145215174d
15329d2921
hex205b6589

542860681 has 8 divisors (see below), whose sum is σ = 605984544. Its totient is φ = 482032320.

The previous prime is 542860673. The next prime is 542860691. The reversal of 542860681 is 186068245.

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

It is not a de Polignac number, because 542860681 - 23 = 542860673 is a prime.

It is a super-2 number, since 2×5428606812 = 589395437951567522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542860601) 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, 573376 + ... + 574321.

It is an arithmetic number, because the mean of its divisors is an integer number (75748068).

Almost surely, 2542860681 is an apocalyptic number.

It is an amenable number.

542860681 is a deficient number, since it is larger than the sum of its proper divisors (63123863).

542860681 is a wasteful number, since it uses less digits than its factorization.

542860681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147751.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 542860681 is about 23299.3708284151. The cubic root of 542860681 is about 815.7607314830.

The spelling of 542860681 in words is "five hundred forty-two million, eight hundred sixty thousand, six hundred eighty-one".

Divisors: 1 11 43 473 1147697 12624667 49350971 542860681