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494839485 = 325721743307
BaseRepresentation
bin11101011111101…
…010011010111101
31021111010110011100
4131133222122331
52003134330420
6121034043313
715156031500
oct3537523275
91244113140
10494839485
11234362258
12119879539
137b69923a
1449a11137
152d699190
hex1d7ea6bd

494839485 has 144 divisors (see below), whose sum is σ = 1084539456. Its totient is φ = 207277056.

The previous prime is 494839469. The next prime is 494839487. The reversal of 494839485 is 584938494.

It is not a de Polignac number, because 494839485 - 24 = 494839469 is a prime.

It is a super-2 number, since 2×4948394852 = 489732231830130450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494839487) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1611702 + ... + 1612008.

It is an arithmetic number, because the mean of its divisors is an integer number (7531524).

Almost surely, 2494839485 is an apocalyptic number.

494839485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

494839485 is an abundant number, since it is smaller than the sum of its proper divisors (589699971).

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

494839485 is a wasteful number, since it uses less digits than its factorization.

494839485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 382 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 494839485 is about 22244.9878624377. The cubic root of 494839485 is about 790.9604752224.

Subtracting 494839485 from its reverse (584938494), we obtain a palindrome (90099009).

The spelling of 494839485 in words is "four hundred ninety-four million, eight hundred thirty-nine thousand, four hundred eighty-five".

Divisors: 1 3 5 7 9 15 17 21 35 43 45 49 51 63 85 105 119 129 147 153 215 245 255 301 307 315 357 387 441 595 645 731 735 765 833 903 921 1071 1505 1535 1785 1935 2107 2149 2193 2205 2499 2709 2763 3655 4165 4515 4605 5117 5219 5355 6321 6447 6579 7497 10535 10745 10965 12495 13201 13545 13815 15043 15351 15657 18963 19341 25585 26095 31605 32235 32895 35819 36533 37485 39603 45129 46053 46971 66005 75215 76755 78285 92407 94815 96705 107457 109599 118809 135387 179095 182665 198015 224417 225645 230265 234855 255731 277221 322371 328797 462035 537285 547995 594045 646849 673251 676935 767193 831663 1122085 1278655 1386105 1570919 1611855 1643985 1940547 2019753 2301579 3234245 3366255 3835965 4158315 4712757 5821641 7854595 9702735 10098765 10996433 11507895 14138271 23563785 29108205 32989299 54982165 70691355 98967897 164946495 494839485