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485393280 = 27352411049
BaseRepresentation
bin11100111011101…
…000001110000000
31020211100112101220
4130323220032000
51443230041110
6120055355040
715012526521
oct3473501600
91224315356
10485393280
11229aa0179
12116682a80
137973c778
1448672848
152c930370
hex1cee8380

485393280 has 128 divisors (see below), whose sum is σ = 1555092000. Its totient is φ = 128778240.

The previous prime is 485393267. The next prime is 485393281. The reversal of 485393280 is 82393584.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485393281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462196 + ... + 463244.

Almost surely, 2485393280 is an apocalyptic number.

485393280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485393280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777546000).

485393280 is an abundant number, since it is smaller than the sum of its proper divisors (1069698720).

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

485393280 is a wasteful number, since it uses less digits than its factorization.

485393280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 485393280 is about 22031.6426986278. The cubic root of 485393280 is about 785.8951099600.

The spelling of 485393280 in words is "four hundred eighty-five million, three hundred ninety-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 241 320 384 480 482 640 723 960 964 1049 1205 1446 1920 1928 2098 2410 2892 3147 3615 3856 4196 4820 5245 5784 6294 7230 7712 8392 9640 10490 11568 12588 14460 15424 15735 16784 19280 20980 23136 25176 28920 30848 31470 33568 38560 41960 46272 50352 57840 62940 67136 77120 83920 92544 100704 115680 125880 134272 154240 167840 201408 231360 251760 252809 335680 402816 462720 503520 505618 671360 758427 1007040 1011236 1264045 1516854 2014080 2022472 2528090 3033708 3792135 4044944 5056180 6067416 7584270 8089888 10112360 12134832 15168540 16179776 20224720 24269664 30337080 32359552 40449440 48539328 60674160 80898880 97078656 121348320 161797760 242696640 485393280