Search a number
-
+
28024358320 = 2457213752183
BaseRepresentation
bin11010000110011000…
…011100010110110000
32200100001202220111001
4122012120130112300
5424343213431240
620512455131344
72011320054400
oct320630342660
980301686431
1028024358320
1110981024212
125521373b54
132847c98b5a
1414dbcd0800
15ae047889a
hex68661c5b0

28024358320 has 120 divisors (see below), whose sum is σ = 76349157984. Its totient is φ = 9538034688.

The previous prime is 28024358317. The next prime is 28024358381. The reversal of 28024358320 is 2385342082.

It is a self number, because there is not a number n which added to its sum of digits gives 28024358320.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 510949 + ... + 563131.

Almost surely, 228024358320 is an apocalyptic number.

28024358320 is a gapful number since it is divisible by the number (20) 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 28024358320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38174578992).

28024358320 is an abundant number, since it is smaller than the sum of its proper divisors (48324799664).

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

28024358320 is a wasteful number, since it uses less digits than its factorization.

28024358320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52347 (or 52334 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 28024358320 in words is "twenty-eight billion, twenty-four million, three hundred fifty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 137 140 196 245 274 280 392 490 548 560 685 784 959 980 1096 1370 1918 1960 2192 2740 3836 3920 4795 5480 6713 7672 9590 10960 13426 15344 19180 26852 33565 38360 52183 53704 67130 76720 104366 107408 134260 208732 260915 268520 365281 417464 521830 537040 730562 834928 1043660 1461124 1826405 2087320 2556967 2922248 3652810 4174640 5113934 5844496 7149071 7305620 10227868 12784835 14298142 14611240 20455736 25569670 28596284 29222480 35745355 40911472 50043497 51139340 57192568 71490710 100086994 102278680 114385136 142981420 200173988 204557360 250217485 285962840 350304479 400347976 500434970 571925680 700608958 800695952 1000869940 1401217916 1751522395 2001739880 2802435832 3503044790 4003479760 5604871664 7006089580 14012179160 28024358320