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8320794428928 = 29361367241979
BaseRepresentation
bin111100100010101010111…
…1111110000011000000000
31002110110102110200212110210
41321011111333300120000
52042311441333211203
625410304205554120
71516105020450042
oct171052577603000
932413373625423
108320794428928
112718913594793
12b24761275940
1348485587c887
1420aa2b3c1a92
15e6699eb6803
hex79155ff0600

8320794428928 has 160 divisors (see below), whose sum is σ = 22591996162560. Its totient is φ = 2720684482560.

The previous prime is 8320794428909. The next prime is 8320794429001. The reversal of 8320794428928 is 8298244970238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34265443 + ... + 34507421.

It is an arithmetic number, because the mean of its divisors is an integer number (141199976016).

Almost surely, 28320794428928 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 8320794428928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11295998081280).

8320794428928 is an abundant number, since it is smaller than the sum of its proper divisors (14271201733632).

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

8320794428928 is a wasteful number, since it uses less digits than its factorization.

8320794428928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242428 (or 242412 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 8320794428928 in words is "eight trillion, three hundred twenty billion, seven hundred ninety-four million, four hundred twenty-eight thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 61 64 96 122 128 183 192 244 256 366 367 384 488 512 732 734 768 976 1101 1464 1468 1536 1952 2202 2928 2936 3904 4404 5856 5872 7808 8808 11712 11744 15616 17616 22387 23424 23488 31232 35232 44774 46848 46976 67161 70464 89548 93696 93952 134322 140928 179096 187904 241979 268644 281856 358192 483958 537288 563712 716384 725937 967916 1074576 1432768 1451874 1935832 2149152 2865536 2903748 3871664 4298304 5731072 5807496 7743328 8596608 11462144 11614992 14760719 15486656 17193216 23229984 29521438 30973312 34386432 44282157 46459968 59042876 61946624 88564314 88806293 92919936 118085752 123893248 177128628 177612586 185839872 236171504 266418879 354257256 355225172 371679744 472343008 532837758 708514512 710450344 944686016 1065675516 1417029024 1420900688 1889372032 2131351032 2834058048 2841801376 3778744064 4262702064 5417183873 5668116096 5683602752 7557488128 8525404128 10834367746 11336232192 11367205504 16251551619 17050808256 21668735492 22672464384 22734411008 32503103238 34101616512 43337470984 45468822016 65006206476 68203233024 86674941968 130012412952 136406466048 173349883936 260024825904 346699767872 520049651808 693399535744 1040099303616 1386799071488 2080198607232 2773598142976 4160397214464 8320794428928