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20471325514575 = 3521322792494411
BaseRepresentation
bin1001010011110010110100…
…00101011101101101001111
32200111001001212120102200120
410221321122011131231033
510140400233312431300
6111312221435400023
74212001346550345
oct451713205355517
980431055512616
1020471325514575
1165829276261a1
1223675915b3013
13b5658c868b70
1450ab630b9995
1525778d4203a0
hex129e5a15db4f

20471325514575 has 48 divisors (see below), whose sum is σ = 36610028224896. Its totient is φ = 10033793596800.

The previous prime is 20471325514543. The next prime is 20471325514667. The reversal of 20471325514575 is 57541552317402.

It is not a de Polignac number, because 20471325514575 - 25 = 20471325514543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46025881 + ... + 46468530.

It is an arithmetic number, because the mean of its divisors is an integer number (762708921352).

Almost surely, 220471325514575 is an apocalyptic number.

20471325514575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20471325514575 is a deficient number, since it is larger than the sum of its proper divisors (16138702710321).

20471325514575 is a wasteful number, since it uses less digits than its factorization.

20471325514575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92494664 (or 92494659 counting only the distinct ones).

The product of its (nonzero) digits is 5880000, while the sum is 51.

The spelling of 20471325514575 in words is "twenty trillion, four hundred seventy-one billion, three hundred twenty-five million, five hundred fourteen thousand, five hundred seventy-five".

Divisors: 1 3 5 13 15 25 39 65 75 195 227 325 681 975 1135 2951 3405 5675 8853 14755 17025 44265 73775 221325 92494411 277483233 462472055 1202427343 1387416165 2312360275 3607282029 6012136715 6937080825 18036410145 20996231297 30060683575 62988693891 90182050725 104981156485 272951006861 314943469455 524905782425 818853020583 1364755034305 1574717347275 4094265102915 6823775171525 20471325514575