Search a number
-
+
387019296 = 253571701
BaseRepresentation
bin10111000100010…
…111001000100000
3222222020121200000
4113010113020200
51243034104141
6102223100000
712406416066
oct2704271040
9888217600
10387019296
1118950a364
12a9741600
1362248101
1439586036
1523e9c5b6
hex17117220

387019296 has 144 divisors (see below), whose sum is σ = 1159075008. Its totient is φ = 127008000.

The previous prime is 387019273. The next prime is 387019309. The reversal of 387019296 is 692910783.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551746 + ... + 552446.

It is an arithmetic number, because the mean of its divisors is an integer number (8049132).

Almost surely, 2387019296 is an apocalyptic number.

387019296 is a gapful number since it is divisible by the number (36) 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 387019296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579537504).

387019296 is an abundant number, since it is smaller than the sum of its proper divisors (772055712).

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

387019296 is an equidigital number, since it uses as much as digits as its factorization.

387019296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 387019296 is about 19672.8060021950. The cubic root of 387019296 is about 728.7482746189.

The spelling of 387019296 in words is "three hundred eighty-seven million, nineteen thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 71 72 81 96 108 142 144 162 213 216 243 284 288 324 426 432 486 568 639 648 701 852 864 972 1136 1278 1296 1402 1704 1917 1944 2103 2272 2556 2592 2804 3408 3834 3888 4206 5112 5608 5751 6309 6816 7668 7776 8412 10224 11216 11502 12618 15336 16824 17253 18927 20448 22432 23004 25236 30672 33648 34506 37854 46008 49771 50472 56781 61344 67296 69012 75708 92016 99542 100944 113562 138024 149313 151416 170343 184032 199084 201888 227124 276048 298626 302832 340686 398168 447939 454248 552096 597252 605664 681372 796336 895878 908496 1194504 1343817 1362744 1592672 1791756 1816992 2389008 2687634 2725488 3583512 4031451 4778016 5375268 5450976 7167024 8062902 10750536 12094353 14334048 16125804 21501072 24188706 32251608 43002144 48377412 64503216 96754824 129006432 193509648 387019296