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4905287992 = 231163188339
BaseRepresentation
bin1001001000110000…
…01100000100111000
3110122212011110010001
410210120030010320
540021223203432
62130425202344
7232362155113
oct44430140470
913585143101
104905287992
1120979a8520
12b4a9303b4
13602349c97
1434768957a
151da9989e7
hex12460c138

4905287992 has 32 divisors (see below), whose sum is σ = 10049558400. Its totient is φ = 2226117600.

The previous prime is 4905287971. The next prime is 4905287999. The reversal of 4905287992 is 2997825094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905287999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11359 + ... + 99697.

It is an arithmetic number, because the mean of its divisors is an integer number (314048700).

Almost surely, 24905287992 is an apocalyptic number.

It is an amenable number.

4905287992 is an abundant number, since it is smaller than the sum of its proper divisors (5144270408).

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

4905287992 is a wasteful number, since it uses less digits than its factorization.

4905287992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88987 (or 88983 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 4905287992 is about 70037.7611863772. The cubic root of 4905287992 is about 1699.1100292111.

The spelling of 4905287992 in words is "four billion, nine hundred five million, two hundred eighty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 631 1262 2524 5048 6941 13882 27764 55528 88339 176678 353356 706712 971729 1943458 3886916 7773832 55741909 111483818 222967636 445935272 613160999 1226321998 2452643996 4905287992