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486439380 = 2232571572459
BaseRepresentation
bin11100111111100…
…111100111010100
31020220022200101100
4130333213213110
51444012030010
6120134030100
715024444420
oct3477474724
91226280340
10486439380
1122a645119
12116aa8330
1379a1796b
1448865b80
152ca8a2c0
hex1cfe79d4

486439380 has 144 divisors (see below), whose sum is σ = 1697754240. Its totient is φ = 110433024.

The previous prime is 486439367. The next prime is 486439391. The reversal of 486439380 is 83934684.

486439380 is a `hidden beast` number, since 486 + 4 + 3 + 93 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196591 + ... + 199049.

It is an arithmetic number, because the mean of its divisors is an integer number (11789960).

Almost surely, 2486439380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 486439380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848877120).

486439380 is an abundant number, since it is smaller than the sum of its proper divisors (1211314860).

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

486439380 is a wasteful number, since it uses less digits than its factorization.

486439380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 486439380 is about 22055.3707744848. The cubic root of 486439380 is about 786.4592813314.

It can be divided in two parts, 4864 and 39380, that added together give a palindrome (44244).

The spelling of 486439380 in words is "four hundred eighty-six million, four hundred thirty-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 157 180 210 252 314 315 420 471 628 630 785 942 1099 1260 1413 1570 1884 2198 2355 2459 2826 3140 3297 4396 4710 4918 5495 5652 6594 7065 7377 9420 9836 9891 10990 12295 13188 14130 14754 16485 17213 19782 21980 22131 24590 28260 29508 32970 34426 36885 39564 44262 49180 49455 51639 65940 68852 73770 86065 88524 98910 103278 110655 147540 154917 172130 197820 206556 221310 258195 309834 344260 386063 442620 516390 619668 772126 774585 1032780 1158189 1544252 1549170 1930315 2316378 2702441 3098340 3474567 3860630 4632756 5404882 5790945 6949134 7721260 8107323 10809764 11581890 13512205 13898268 16214646 17372835 23163780 24321969 27024410 32429292 34745670 40536615 48643938 54048820 69491340 81073230 97287876 121609845 162146460 243219690 486439380