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20413421325 = 32521141201167
BaseRepresentation
bin10011000000101111…
…000001011100001101
31221200122110020200200
4103000233001130031
5313301313440300
613213334244113
71321602134613
oct230057013415
957618406620
1020413421325
118725931640
123b584b6639
131c0423813b
14db91816b3
157e71d1200
hex4c0bc170d

20413421325 has 72 divisors (see below), whose sum is σ = 40859634816. Its totient is φ = 9655968000.

The previous prime is 20413421323. The next prime is 20413421339. The reversal of 20413421325 is 52312431402.

20413421325 is a `hidden beast` number, since 204 + 1 + 3 + 421 + 32 + 5 = 666.

It is not a de Polignac number, because 20413421325 - 21 = 20413421323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413421323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 892 + ... + 202058.

It is an arithmetic number, because the mean of its divisors is an integer number (567494928).

Almost surely, 220413421325 is an apocalyptic number.

20413421325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20413421325 is an abundant number, since it is smaller than the sum of its proper divisors (20446213491).

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

20413421325 is a wasteful number, since it uses less digits than its factorization.

20413421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201235 (or 201227 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20413421325 its reverse (52312431402), we get a palindrome (72725852727).

The spelling of 20413421325 in words is "twenty billion, four hundred thirteen million, four hundred twenty-one thousand, three hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 33 41 45 55 75 99 123 165 205 225 275 369 451 495 615 825 1025 1353 1845 2255 2475 3075 4059 6765 9225 11275 20295 33825 101475 201167 603501 1005835 1810503 2212837 3017505 5029175 6638511 8247847 9052515 11064185 15087525 19915533 24743541 33192555 41239235 45262575 55320925 74230623 90726317 99577665 123717705 165962775 206196175 272178951 371153115 453631585 497888325 618588525 816536853 1360894755 1855765575 2268157925 4082684265 6804473775 20413421325