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4869448990 = 257289111659
BaseRepresentation
bin1001000100011110…
…11110010100011110
3110120100201122020121
410202033132110132
534433034331430
62123105105154
7231445430200
oct44217362436
913510648217
104869448990
11207974a10a
12b3a9281ba
135c7aac383
143429da770
151d7769a7a
hex1223de51e

4869448990 has 48 divisors (see below), whose sum is σ = 10310684400. Its totient is φ = 1650751872.

The previous prime is 4869448967. The next prime is 4869449003. The reversal of 4869448990 is 998449684.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12220 + ... + 99439.

It is an arithmetic number, because the mean of its divisors is an integer number (214805925).

Almost surely, 24869448990 is an apocalyptic number.

4869448990 is an abundant number, since it is smaller than the sum of its proper divisors (5441235410).

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

4869448990 is a wasteful number, since it uses less digits than its factorization.

4869448990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111769 (or 111762 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The square root of 4869448990 is about 69781.4372881499. The cubic root of 4869448990 is about 1694.9618993475.

It can be divided in two parts, 486 and 9448990, that added together give a square (9449476 = 30742).

The spelling of 4869448990 in words is "four billion, eight hundred sixty-nine million, four hundred forty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 89 98 178 245 445 490 623 890 1246 3115 4361 6230 8722 21805 43610 111659 223318 558295 781613 1116590 1563226 3908065 5471291 7816130 9937651 10942582 19875302 27356455 49688255 54712910 69563557 99376510 139127114 347817785 486944899 695635570 973889798 2434724495 4869448990