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30888866385355 = 51117383551915629
BaseRepresentation
bin1110000010111110111111…
…11010001000110111001011
311001100221120012121121122111
413001133133322020313023
513022040344243312410
6145410052130403151
76335434622116636
oct701373772106713
9131327505547574
1030888866385355
119929992892430
12356a576a304b7
131430a663baba4
1478b059c40c1d
15388754b71b8a
hex1c17dfe88dcb

30888866385355 has 64 divisors (see below), whose sum is σ = 42937255526400. Its totient is φ = 21082807121920.

The previous prime is 30888866385331. The next prime is 30888866385407. The reversal of 30888866385355 is 55358366888803.

It is not a de Polignac number, because 30888866385355 - 231 = 30886718901707 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1976373681 + ... + 1976389309.

It is an arithmetic number, because the mean of its divisors is an integer number (670894617600).

Almost surely, 230888866385355 is an apocalyptic number.

30888866385355 is a deficient number, since it is larger than the sum of its proper divisors (12048389141045).

30888866385355 is a wasteful number, since it uses less digits than its factorization.

30888866385355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564.

The product of its (nonzero) digits is 3981312000, while the sum is 76.

The spelling of 30888866385355 in words is "thirty trillion, eight hundred eighty-eight billion, eight hundred sixty-six million, three hundred eighty-five thousand, three hundred fifty-five".

Divisors: 1 5 11 17 55 85 187 383 935 1915 4213 5519 6511 15629 21065 27595 32555 60709 71621 78145 93823 171919 265693 303545 358105 469115 859595 1032053 1328465 2113777 2922623 5160265 5985907 10568885 14613115 23251547 29929535 35934209 65844977 86256451 101760419 116257735 179671045 329224885 395276299 431282255 508802095 948820961 1119364609 1466359667 1976381495 4744104805 5596823045 7331798335 16129956337 33036220733 80649781685 165181103665 363398428063 561615752461 1816992140315 2808078762305 6177773277071 30888866385355