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4987887894 = 232113613413
BaseRepresentation
bin1001010010100110…
…10010000100010110
3110212121120221212200
410221103102010112
540203344403034
62142535425330
7234414230133
oct45123220426
913777527780
104987887894
11212a595000
12b72525246
136164aa872
1435462b58a
151e2d62a99
hex1294d2116

4987887894 has 96 divisors (see below), whose sum is σ = 12085396128. Its totient is φ = 1486267200.

The previous prime is 4987887889. The next prime is 4987887901.

4987887894 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×49878878942 = 49758051286223510472, which contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 1459732 + ... + 1463144.

It is an arithmetic number, because the mean of its divisors is an integer number (125889543).

Almost surely, 24987887894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4987887894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6042698064).

4987887894 is an abundant number, since it is smaller than the sum of its proper divisors (7097508234).

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

4987887894 is a wasteful number, since it uses less digits than its factorization.

4987887894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515 (or 3490 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 72.

The square root of 4987887894 is about 70624.9806654841. The cubic root of 4987887894 is about 1708.5940695843.

The spelling of 4987887894 in words is "four billion, nine hundred eighty-seven million, eight hundred eighty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 11 18 22 33 61 66 99 121 122 183 198 242 363 366 549 671 726 1089 1098 1331 1342 2013 2178 2662 3413 3993 4026 6039 6826 7381 7986 10239 11979 12078 14762 20478 22143 23958 30717 37543 44286 61434 66429 75086 81191 112629 132858 162382 208193 225258 243573 337887 412973 416386 487146 624579 675774 730719 825946 1238919 1249158 1461438 1873737 2290123 2477838 3716757 3747474 4542703 4580246 6870369 7433514 9085406 13628109 13740738 20611107 25191353 27256218 40884327 41222214 50382706 75574059 81768654 151148118 226722177 277104883 453444354 554209766 831314649 1662629298 2493943947 4987887894