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385045668 = 2232723312143
BaseRepresentation
bin10110111100110…
…101010010100100
3222211112100100200
4112330311102210
51242032430133
6102112510500
712353556060
oct2674652244
9884470320
10385045668
11188391567
12a8b4b430
1361a06997
14391d0aa0
1523c0c913
hex16f354a4

385045668 has 144 divisors (see below), whose sum is σ = 1198718976. Its totient is φ = 101787840.

The previous prime is 385045663. The next prime is 385045681. The reversal of 385045668 is 866540583.

385045668 is a `hidden beast` number, since 3 + 85 + 0 + 4 + 566 + 8 = 666.

385045668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (385045663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178605 + ... + 180747.

Almost surely, 2385045668 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 385045668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599359488).

385045668 is an abundant number, since it is smaller than the sum of its proper divisors (813673308).

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

385045668 is a wasteful number, since it uses less digits than its factorization.

385045668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 385045668 is about 19622.5805642377. The cubic root of 385045668 is about 727.5073978062.

The spelling of 385045668 in words is "three hundred eighty-five million, forty-five thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 23 28 31 36 42 46 62 63 69 84 92 93 124 126 138 161 186 207 217 252 276 279 322 372 414 434 483 558 644 651 713 828 868 966 1116 1302 1426 1449 1932 1953 2139 2143 2604 2852 2898 3906 4278 4286 4991 5796 6417 6429 7812 8556 8572 9982 12834 12858 14973 15001 19287 19964 25668 25716 29946 30002 38574 44919 45003 49289 59892 60004 66433 77148 89838 90006 98578 132866 135009 147867 179676 180012 197156 199299 265732 270018 295734 345023 398598 443601 465031 540036 591468 597897 690046 797196 887202 930062 1035069 1195794 1380092 1395093 1527959 1774404 1860124 2070138 2391588 2790186 3055918 3105207 4140276 4185279 4583877 5580372 6111836 6210414 8370558 9167754 10695713 12420828 13751631 16741116 18335508 21391426 27503262 32087139 42782852 55006524 64174278 96261417 128348556 192522834 385045668