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102123206484 = 223131061616999
BaseRepresentation
bin101111100011100000…
…1000111011101010100
3100202121010211101222220
41133013001013131110
53133122020101414
6114525330422340
710243464634605
oct1370701073524
9322533741886
10102123206484
113a345984602
1217960a319b0
139826664340
144d2b02bdac
1529ca837ca9
hex17c7047754

102123206484 has 48 divisors (see below), whose sum is σ = 256859568000. Its totient is φ = 31392858240.

The previous prime is 102123206483. The next prime is 102123206501. The reversal of 102123206484 is 484602321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123206483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142984 + ... + 474015.

It is an arithmetic number, because the mean of its divisors is an integer number (5351241000).

Almost surely, 2102123206484 is an apocalyptic number.

It is an amenable number.

102123206484 is an abundant number, since it is smaller than the sum of its proper divisors (154736361516).

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

102123206484 is a wasteful number, since it uses less digits than its factorization.

102123206484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618080 (or 618078 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 102123206484 its reverse (484602321201), we get a palindrome (586725527685).

The spelling of 102123206484 in words is "one hundred two billion, one hundred twenty-three million, two hundred six thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1061 2122 3183 4244 6366 12732 13793 27586 41379 55172 82758 165516 616999 1233998 1850997 2467996 3701994 7403988 8020987 16041974 24062961 32083948 48125922 96251844 654635939 1309271878 1963907817 2618543756 3927815634 7855631268 8510267207 17020534414 25530801621 34041068828 51061603242 102123206484