Search a number
-
+
28574272360 = 23589103149523
BaseRepresentation
bin11010100111001010…
…001100101101101000
32201202101112102201201
4122213022030231220
5432010003203420
621043221453544
72031045210334
oct324712145550
981671472651
1028574272360
1111133482827
1256555712b4
132904ba918a
141550d5a7c4
15b238a110a
hex6a728cb68

28574272360 has 128 divisors (see below), whose sum is σ = 66212640000. Its totient is φ = 11095197696.

The previous prime is 28574272343. The next prime is 28574272399. The reversal of 28574272360 is 6327247582.

It is a self number, because there is not a number n which added to its sum of digits gives 28574272360.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54635059 + ... + 54635581.

It is an arithmetic number, because the mean of its divisors is an integer number (517286250).

Almost surely, 228574272360 is an apocalyptic number.

28574272360 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 28574272360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33106320000).

28574272360 is an abundant number, since it is smaller than the sum of its proper divisors (37638367640).

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

28574272360 is a wasteful number, since it uses less digits than its factorization.

28574272360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 28574272360 in words is "twenty-eight billion, five hundred seventy-four million, two hundred seventy-two thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 89 103 149 178 206 298 356 412 445 515 523 596 712 745 824 890 1030 1046 1192 1490 1780 2060 2092 2615 2980 3560 4120 4184 5230 5960 9167 10460 13261 15347 18334 20920 26522 30694 36668 45835 46547 53044 53869 61388 66305 73336 76735 77927 91670 93094 106088 107738 122776 132610 153470 155854 183340 186188 215476 232735 265220 269345 306940 311708 366680 372376 389635 430952 465470 530440 538690 613880 623416 779270 930940 1077380 1365883 1558540 1861880 2154760 2731766 3117080 4794341 5463532 6829415 6935503 8026481 9588682 10927064 13658830 13871006 16052962 19177364 23971705 27317660 27742012 32105924 34677515 38354728 40132405 47943410 54635320 55484024 64211848 69355030 80264810 95886820 138710060 160529620 191773640 277420120 321059240 714356809 1428713618 2857427236 3571784045 5714854472 7143568090 14287136180 28574272360