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20580519648048 = 24329139223476977
BaseRepresentation
bin1001010110111110001101…
…00100000001101100110000
32200212110220210121011000020
410223133012210001230300
510144142401012214143
6111434321000523440
74222615314431613
oct453370644015460
980773823534006
1020580519648048
116615170898908
122384786480580
13b6397210a869
1451216124817a
1525a52e8d2883
hex12b7c6901b30

20580519648048 has 160 divisors (see below), whose sum is σ = 55643871897600. Its totient is φ = 6546461257728.

The previous prime is 20580519647983. The next prime is 20580519648109. The reversal of 20580519648048 is 84084691508502.

It is a junction number, because it is equal to n+sod(n) for n = 20580519647982 and 20580519648000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42909336 + ... + 43386312.

It is an arithmetic number, because the mean of its divisors is an integer number (347774199360).

Almost surely, 220580519648048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20580519648048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27821935948800).

20580519648048 is an abundant number, since it is smaller than the sum of its proper divisors (35063352249552).

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

20580519648048 is a wasteful number, since it uses less digits than its factorization.

20580519648048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477379 (or 477373 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 60.

The spelling of 20580519648048 in words is "twenty trillion, five hundred eighty billion, five hundred nineteen million, six hundred forty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 29 48 58 87 116 139 174 223 232 278 348 417 446 464 556 669 696 834 892 1112 1338 1392 1668 1784 2224 2676 3336 3568 4031 5352 6467 6672 8062 10704 12093 12934 16124 19401 24186 25868 30997 32248 38802 48372 51736 61994 64496 77604 92991 96744 103472 123988 155208 185982 193488 247976 310416 371964 476977 495952 743928 898913 953954 1430931 1487856 1797826 1907908 2696739 2861862 3595652 3815816 5393478 5723724 7191304 7631632 10786956 11447448 13832333 14382608 21573912 22894896 27664666 41496999 43147824 55329332 66299803 82993998 106365871 110658664 132599606 165987996 198899409 212731742 221317328 265199212 319097613 331975992 397798818 425463484 530398424 638195226 663951984 795597636 850926968 1060796848 1276390452 1591195272 1701853936 1922694287 2552780904 3084610259 3182390544 3845388574 5105561808 5768082861 6169220518 7690777148 9253830777 11536165722 12338441036 14784856069 15381554296 18507661554 23072331444 24676882072 29569712138 30763108592 37015323108 44354568207 46144662888 49353764144 59139424276 74030646216 88709136414 92289325776 118278848552 148061292432 177418272828 236557697104 354836545656 428760826001 709673091312 857521652002 1286282478003 1715043304004 2572564956006 3430086608008 5145129912012 6860173216016 10290259824024 20580519648048