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488444085 = 32517638489
BaseRepresentation
bin11101000111010…
…001000010110101
31021001002112022200
4131013101002311
52000020202320
6120245015113
715050464143
oct3507210265
91231075280
10488444085
112307942a8
121176b4499
137a26a28c
1448c28593
152cd34290
hex1d1d10b5

488444085 has 24 divisors (see below), whose sum is σ = 896439960. Its totient is φ = 245179392.

The previous prime is 488444083. The next prime is 488444101. The reversal of 488444085 is 580444884.

It can be written as a sum of positive squares in 4 ways, for example, as 37051569 + 451392516 = 6087^2 + 21246^2 .

It is not a de Polignac number, because 488444085 - 21 = 488444083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 488444085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488444081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318480 + ... + 320009.

It is an arithmetic number, because the mean of its divisors is an integer number (37351665).

Almost surely, 2488444085 is an apocalyptic number.

488444085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

488444085 is a deficient number, since it is larger than the sum of its proper divisors (407995875).

488444085 is a wasteful number, since it uses less digits than its factorization.

488444085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638517 (or 638514 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 45.

The square root of 488444085 is about 22100.7711403924. The cubic root of 488444085 is about 787.5381810664.

The spelling of 488444085 in words is "four hundred eighty-eight million, four hundred forty-four thousand, eighty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 638489 1915467 3192445 5746401 9577335 10854313 28732005 32562939 54271565 97688817 162814695 488444085