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384520608 = 25341091361
BaseRepresentation
bin10110111010110…
…101000110100000
3222210112200010000
4112322311012200
51241414124413
6102053340000
712346241223
oct2672650640
9883480100
10384520608
1118806302a
12a8937600
13618819b4
14390d55ba
1523b57073
hex16eb51a0

384520608 has 120 divisors (see below), whose sum is σ = 1142077860. Its totient is φ = 126904320.

The previous prime is 384520607. The next prime is 384520667. The reversal of 384520608 is 806025483.

384520608 is a `hidden beast` number, since 3 + 8 + 45 + 2 + 0 + 608 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 382124304 + 2396304 = 19548^2 + 1548^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (384520607) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 281848 + ... + 283208.

Almost surely, 2384520608 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 384520608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571038930).

384520608 is an abundant number, since it is smaller than the sum of its proper divisors (757557252).

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

384520608 is a wasteful number, since it uses less digits than its factorization.

384520608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 384520608 is about 19609.1970258856. The cubic root of 384520608 is about 727.1765636338.

The spelling of 384520608 in words is "three hundred eighty-four million, five hundred twenty thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 109 144 162 216 218 288 324 327 432 436 648 654 864 872 981 1296 1308 1361 1744 1962 2592 2616 2722 2943 3488 3924 4083 5232 5444 5886 7848 8166 8829 10464 10888 11772 12249 15696 16332 17658 21776 23544 24498 31392 32664 35316 36747 43552 47088 48996 65328 70632 73494 94176 97992 110241 130656 141264 146988 148349 195984 220482 282528 293976 296698 391968 440964 445047 587952 593396 881928 890094 1175904 1186792 1335141 1763856 1780188 2373584 2670282 3527712 3560376 4005423 4747168 5340564 7120752 8010846 10681128 12016269 14241504 16021692 21362256 24032538 32043384 42724512 48065076 64086768 96130152 128173536 192260304 384520608