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28352514572052 = 223111297433938167
BaseRepresentation
bin1100111001001010101011…
…00011110011111100010100
310201101110210111012121021020
412130211111203303330110
512204011422212301202
6140144544304521140
75654254512326226
oct634452543637424
9121343714177236
1028352514572052
119041263366840
12321aaa79201b0
1312a8827708568
147003aa2d4416
153427a99a85bc
hex19c9558f3f14

28352514572052 has 96 divisors (see below), whose sum is σ = 72244219407360. Its totient is φ = 8582843358720.

The previous prime is 28352514572009. The next prime is 28352514572077. The reversal of 28352514572052 is 25027541525382.

It is a junction number, because it is equal to n+sod(n) for n = 28352514571986 and 28352514572004.

It is a congruent number.

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, 742835073 + ... + 742873239.

It is an arithmetic number, because the mean of its divisors is an integer number (752543952160).

Almost surely, 228352514572052 is an apocalyptic number.

28352514572052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28352514572052 is an abundant number, since it is smaller than the sum of its proper divisors (43891704835308).

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

28352514572052 is a wasteful number, since it uses less digits than its factorization.

28352514572052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43821 (or 43819 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 51.

The spelling of 28352514572052 in words is "twenty-eight trillion, three hundred fifty-two billion, five hundred fourteen million, five hundred seventy-two thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1297 2594 3891 4339 5188 7782 8678 13017 14267 15564 17356 26034 28534 38167 42801 47729 52068 57068 76334 85602 95458 114501 143187 152668 171204 190916 229002 286374 419837 458004 572748 839674 1259511 1679348 2519022 5038044 5627683 11255366 16883049 22510732 33766098 49502599 61904513 67532196 99005198 123809026 148507797 165606613 185713539 198010396 247618052 297015594 331213226 371427078 496819839 544528589 594031188 662426452 742854156 993639678 1089057178 1633585767 1821672743 1987279356 2178114356 3267171534 3643345486 5465018229 6534343068 7286690972 10930036458 21860072916 214791777061 429583554122 644375331183 859167108244 1288750662366 2362709547671 2577501324732 4725419095342 7088128643013 9450838190684 14176257286026 28352514572052