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4542587540 = 2251971152941
BaseRepresentation
bin1000011101100001…
…00110001010010100
3102201120200100121222
410032300212022110
533300400300130
62030431225512
7220366233311
oct41660461224
912646610558
104542587540
111a21199287
12a69378298
1357516802a
14311433d08
151b8c01ce5
hex10ec26294

4542587540 has 24 divisors (see below), whose sum is σ = 9587865672. Its totient is φ = 1807809920.

The previous prime is 4542587519. The next prime is 4542587557. The reversal of 4542587540 is 457852454.

It can be written as a sum of positive squares in 4 ways, for example, as 2535726736 + 2006860804 = 50356^2 + 44798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4542587491 and 4542587500.

It is a congruent number.

It is an unprimeable number.

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, 572531 + ... + 580410.

It is an arithmetic number, because the mean of its divisors is an integer number (399494403).

Almost surely, 24542587540 is an apocalyptic number.

It is an amenable number.

4542587540 is an abundant number, since it is smaller than the sum of its proper divisors (5045278132).

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

4542587540 is a wasteful number, since it uses less digits than its factorization.

4542587540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153147 (or 1153145 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 44.

The square root of 4542587540 is about 67398.7206110027. The cubic root of 4542587540 is about 1656.1554640429.

The spelling of 4542587540 in words is "four billion, five hundred forty-two million, five hundred eighty-seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 1152941 2305882 4611764 5764705 11529410 23058820 227129377 454258754 908517508 1135646885 2271293770 4542587540