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481217490 = 233513472917
BaseRepresentation
bin11100101011101…
…100101111010010
31020112111101022000
4130223230233102
51441142424430
6115430054430
714632165305
oct3453545722
91215441260
10481217490
112276a8906
121151aa416
1378909ba0
1447ca6b3c
152c3a7e60
hex1caecbd2

481217490 has 128 divisors (see below), whose sum is σ = 1411845120. Its totient is φ = 115893504.

The previous prime is 481217489. The next prime is 481217491. The reversal of 481217490 is 94712184.

481217490 is a `hidden beast` number, since 48 + 121 + 7 + 490 = 666.

It is an interprime number because it is at equal distance from previous prime (481217489) and next prime (481217491).

It is not an unprimeable number, because it can be changed into a prime (481217491) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 163512 + ... + 166428.

It is an arithmetic number, because the mean of its divisors is an integer number (11030040).

Almost surely, 2481217490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481217490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705922560).

481217490 is an abundant number, since it is smaller than the sum of its proper divisors (930627630).

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

481217490 is a wasteful number, since it uses less digits than its factorization.

481217490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 481217490 is about 21936.6699842980. The cubic root of 481217490 is about 783.6349571304.

It can be divided in two parts, 48121 and 7490, that added together give a triangular number (55611 = T333).

The spelling of 481217490 in words is "four hundred eighty-one million, two hundred seventeen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 47 54 65 78 90 94 117 130 135 141 195 234 235 270 282 351 390 423 470 585 611 702 705 846 1170 1222 1269 1410 1755 1833 2115 2538 2917 3055 3510 3666 4230 5499 5834 6110 6345 8751 9165 10998 12690 14585 16497 17502 18330 26253 27495 29170 32994 37921 43755 52506 54990 75842 78759 82485 87510 113763 131265 137099 157518 164970 189605 227526 262530 274198 341289 379210 393795 411297 568815 682578 685495 787590 822594 1023867 1137630 1233891 1370990 1706445 1782287 2047734 2056485 2467782 3412890 3564574 3701673 4112970 5119335 5346861 6169455 7403346 8911435 10238670 10693722 12338910 16040583 17822870 18508365 26734305 32081166 37016730 48121749 53468610 80202915 96243498 160405830 240608745 481217490