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20030232102100 = 22521171256469041
BaseRepresentation
bin1001000110111101001101…
…10111101000010011010100
32121220212112022111102020221
410203132212313220103110
510111133403404231400
6110333432301004124
74135064552450143
oct443364667502324
977825468442227
1020030232102100
11642285691a890
1222b5bb0253644
13b23ac5792b4c
144d367b44375a
1524b07405ac1a
hex1237a6de84d4

20030232102100 has 72 divisors (see below), whose sum is σ = 48084867746496. Its totient is φ = 7181133120000.

The previous prime is 20030232102071. The next prime is 20030232102169. The reversal of 20030232102100 is 120123203002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128156421 + ... + 128312620.

It is an arithmetic number, because the mean of its divisors is an integer number (667845385368).

Almost surely, 220030232102100 is an apocalyptic number.

20030232102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030232102100 is an abundant number, since it is smaller than the sum of its proper divisors (28054635644396).

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

20030232102100 is a wasteful number, since it uses less digits than its factorization.

20030232102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256469137 (or 256469130 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20030232102100 its reverse (120123203002), we get a palindrome (20150355305102).

The spelling of 20030232102100 in words is "twenty trillion, thirty billion, two hundred thirty-two million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 71 100 110 142 220 275 284 355 550 710 781 1100 1420 1562 1775 3124 3550 3905 7100 7810 15620 19525 39050 78100 256469041 512938082 1025876164 1282345205 2564690410 2821159451 5129380820 5642318902 6411726025 11284637804 12823452050 14105797255 18209301911 25646904100 28211594510 36418603822 56423189020 70528986275 72837207644 91046509555 141057972550 182093019110 200302321021 282115945100 364186038220 400604642042 455232547775 801209284084 910465095550 1001511605105 1820930191100 2003023210210 4006046420420 5007558025525 10015116051050 20030232102100