Search a number
-
+
28875203760 = 24351317875179
BaseRepresentation
bin11010111001000110…
…001010010010110000
32202112100210100000010
4122321012022102300
5433114023010020
621133131454520
72041361116344
oct327106122260
982470710003
1028875203760
1111278332a67
12571a2b7440
132952341bb0
14157ccd3624
15b3eee5de0
hex6b918a4b0

28875203760 has 160 divisors (see below), whose sum is σ = 96471325440. Its totient is φ = 7102393344.

The previous prime is 28875203759. The next prime is 28875203771. The reversal of 28875203760 is 6730257882.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5572851 + ... + 5578029.

It is an arithmetic number, because the mean of its divisors is an integer number (602945784).

Almost surely, 228875203760 is an apocalyptic number.

28875203760 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 28875203760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48235662720).

28875203760 is an abundant number, since it is smaller than the sum of its proper divisors (67596121680).

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

28875203760 is a wasteful number, since it uses less digits than its factorization.

28875203760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6989 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28875203760 in words is "twenty-eight billion, eight hundred seventy-five million, two hundred three thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 1787 3120 3574 5179 5361 7148 8935 10358 10722 14296 15537 17870 20716 21444 23231 25895 26805 28592 31074 35740 41432 42888 46462 51790 53610 62148 67327 69693 71480 77685 82864 85776 92924 103580 107220 116155 124296 134654 139386 142960 155370 185848 201981 207160 214440 232310 248592 269308 278772 310740 336635 348465 371696 403962 414320 428880 464620 538616 557544 621480 673270 696930 807924 929240 1009905 1077232 1115088 1242960 1346540 1393860 1615848 1858480 2019810 2693080 2787720 3231696 4039620 5386160 5575440 8079240 9254873 16158480 18509746 27764619 37019492 46274365 55529238 74038984 92548730 111058476 120313349 138823095 148077968 185097460 222116952 240626698 277646190 360940047 370194920 444233904 481253396 555292380 601566745 721880094 740389840 962506792 1110584760 1203133490 1443760188 1804700235 1925013584 2221169520 2406266980 2887520376 3609400470 4812533960 5775040752 7218800940 9625067920 14437601880 28875203760