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48947987870 = 2511779415553
BaseRepresentation
bin101101100101100001…
…110000010110011110
311200100021021102021122
4231211201300112132
51300221141102440
634253021130542
73351656013665
oct554541602636
9150307242248
1048947987870
1119838954841
1295a06b9a52
134800b21642
142524b23ddc
15141733c7b5
hexb6587059e

48947987870 has 16 divisors (see below), whose sum is σ = 88114070160. Its totient is φ = 19577485824.

The previous prime is 48947987863. The next prime is 48947987887. The reversal of 48947987870 is 7878974984.

48947987870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 48947987794 and 48947987803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89987 + ... + 325566.

It is an arithmetic number, because the mean of its divisors is an integer number (5507129385).

Almost surely, 248947987870 is an apocalyptic number.

48947987870 is a deficient number, since it is larger than the sum of its proper divisors (39166082290).

48947987870 is a wasteful number, since it uses less digits than its factorization.

48947987870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427339.

The product of its (nonzero) digits is 227598336, while the sum is 71.

The spelling of 48947987870 in words is "forty-eight billion, nine hundred forty-seven million, nine hundred eighty-seven thousand, eight hundred seventy".

Divisors: 1 2 5 10 11779 23558 58895 117790 415553 831106 2077765 4155530 4894798787 9789597574 24473993935 48947987870