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2159518248608 = 25727191915499
BaseRepresentation
bin11111011011001101010…
…100010110111010100000
321122110002112120111021212
4133123031110112322200
5240340143132423413
64332022522405252
7312006606150200
oct37331524267240
97573075514255
102159518248608
11762934830aa6
122aa642360828
13128845a680a6
14767423dc400
153b292508ca8
hex1f6cd516ea0

2159518248608 has 72 divisors (see below), whose sum is σ = 4952563560000. Its totient is φ = 924220123008.

The previous prime is 2159518248551. The next prime is 2159518248653. The reversal of 2159518248608 is 8068428159512.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169643 + ... + 2085141.

It is an arithmetic number, because the mean of its divisors is an integer number (68785605000).

Almost surely, 22159518248608 is an apocalyptic number.

2159518248608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159518248608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2476281780000).

2159518248608 is an abundant number, since it is smaller than the sum of its proper divisors (2793045311392).

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

2159518248608 is a wasteful number, since it uses less digits than its factorization.

2159518248608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916242 (or 1916227 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 59.

The spelling of 2159518248608 in words is "two trillion, one hundred fifty-nine billion, five hundred eighteen million, two hundred forty-eight thousand, six hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 719 784 1438 1568 2876 5033 5752 10066 11504 20132 23008 35231 40264 70462 80528 140924 161056 281848 563696 1127392 1915499 3830998 7661996 13408493 15323992 26816986 30647984 53633972 61295968 93859451 107267944 187718902 214535888 375437804 429071776 750875608 1377243781 1501751216 2754487562 3003502432 5508975124 9640706467 11017950248 19281412934 22035900496 38562825868 44071800992 67484945269 77125651736 134969890538 154251303472 269939781076 308502606944 539879562152 1079759124304 2159518248608