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542740081367720 = 23513568502034193
BaseRepresentation
bin111101101100111101000010…
…1110000010101101010101000
32122011200110000110000100110202
41323121322011300111222220
51032114223141312231340
65202151203515131332
7222214451112404465
oct17331720560255250
92564613013010422
10542740081367720
11147a2a859800105
1250a567b7143b48
131a3ac229830a82
149804a8d9d866c
1542b2dad3aac15
hex1ed9e85c15aa8

542740081367720 has 16 divisors (see below), whose sum is σ = 1221165183077460. Its totient is φ = 217096032547072.

The previous prime is 542740081367713. The next prime is 542740081367747. The reversal of 542740081367720 is 27763180047245.

It can be written as a sum of positive squares in 2 ways, for example, as 540930749694724 + 1809331672996 = 23257918^2 + 1345114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6784251017057 + ... + 6784251017136.

Almost surely, 2542740081367720 is an apocalyptic number.

It is an amenable number.

542740081367720 is an abundant number, since it is smaller than the sum of its proper divisors (678425101709740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542740081367720 is a wasteful number, since it uses less digits than its factorization.

542740081367720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13568502034204 (or 13568502034200 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 56.

The spelling of 542740081367720 in words is "five hundred forty-two trillion, seven hundred forty billion, eighty-one million, three hundred sixty-seven thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 13568502034193 27137004068386 54274008136772 67842510170965 108548016273544 135685020341930 271370040683860 542740081367720