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20024405124425 = 5213673319277073
BaseRepresentation
bin1001000110110010010111…
…00011011110010101001001
32121220022111020000021120222
410203121023203132111021
510111034440202440200
6110331030144355425
74134500266116062
oct443311343362511
977808436007528
1020024405124425
116420336726259
1222b4a44915b75
13b233a74c6c70
144d32875d3569
1524ad326edd85
hex12364b8de549

20024405124425 has 48 divisors (see below), whose sum is σ = 27147666188160. Its totient is φ = 14562106352640.

The previous prime is 20024405124397. The next prime is 20024405124433. The reversal of 20024405124425 is 52442150442002.

It is not a de Polignac number, because 20024405124425 - 28 = 20024405124169 is a prime.

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, 72132689 + ... + 72409761.

It is an arithmetic number, because the mean of its divisors is an integer number (565576378920).

Almost surely, 220024405124425 is an apocalyptic number.

20024405124425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20024405124425 is a deficient number, since it is larger than the sum of its proper divisors (7123261063735).

20024405124425 is a wasteful number, since it uses less digits than its factorization.

20024405124425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280482 (or 280477 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 20024405124425 its reverse (52442150442002), we get a palindrome (72466555566427).

The spelling of 20024405124425 in words is "twenty trillion, twenty-four billion, four hundred five million, one hundred twenty-four thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 67 325 335 871 1675 3319 4355 16595 21775 43147 82975 215735 222373 277073 1078675 1111865 1385365 2890849 3601949 5559325 6926825 14454245 18009745 18563891 72271225 90048725 92819455 241330583 464097275 919605287 1206652915 4598026435 6033264575 11954868731 22990132175 59774343655 61613554229 298871718275 308067771145 800976204977 1540338855725 4004881024885 20024405124425