Search a number
-
+
385429248 = 28321311277
BaseRepresentation
bin10110111110010…
…010111100000000
3222212020211112100
4112332102330000
51242132213443
6102125030400
712360044301
oct2676227400
9885224470
10385429248
11188623776
12a90b5400
1361b0c459
14392907a8
1523c863d3
hex16f92f00

385429248 has 108 divisors (see below), whose sum is σ = 1120647528. Its totient is φ = 127395840.

The previous prime is 385429223. The next prime is 385429249. The reversal of 385429248 is 842924583.

385429248 is a `hidden beast` number, since 385 + 4 + 29 + 248 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385429249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301186 + ... + 302462.

It is an arithmetic number, because the mean of its divisors is an integer number (10376366).

Almost surely, 2385429248 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 385429248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560323764).

385429248 is an abundant number, since it is smaller than the sum of its proper divisors (735218280).

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

385429248 is a wasteful number, since it uses less digits than its factorization.

385429248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1413 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 385429248 is about 19632.3520750826. The cubic root of 385429248 is about 727.7488970162.

The spelling of 385429248 in words is "three hundred eighty-five million, four hundred twenty-nine thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 131 144 192 256 262 288 384 393 524 576 768 786 1048 1152 1179 1277 1572 2096 2304 2358 2554 3144 3831 4192 4716 5108 6288 7662 8384 9432 10216 11493 12576 15324 16768 18864 20432 22986 25152 30648 33536 37728 40864 45972 50304 61296 75456 81728 91944 100608 122592 150912 163456 167287 183888 245184 301824 326912 334574 367776 490368 501861 669148 735552 980736 1003722 1338296 1471104 1505583 2007444 2676592 2942208 3011166 4014888 5353184 6022332 8029776 10706368 12044664 16059552 21412736 24089328 32119104 42825472 48178656 64238208 96357312 128476416 192714624 385429248