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380428374842670 = 235711461833565979
BaseRepresentation
bin101011001111111110110001…
…0001001010001110100101110
31211212222121010112122100002210
41112133331202021101310232
5344330414302424431140
63425034214400231250
7143063020525651320
oct12637754211216456
91755877115570083
10380428374842670
11100241849940260
123680169900b526
131343731b3669ab
1469d2b8dc35610
152deac35c9bd80
hex159ff62251d2e

380428374842670 has 128 divisors (see below), whose sum is σ = 1138345714851840. Its totient is φ = 79048318078080.

The previous prime is 380428374842657. The next prime is 380428374842687. The reversal of 380428374842670 is 76248473824083.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is a congruent number.

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, 104899741 + ... + 108465719.

It is an arithmetic number, because the mean of its divisors is an integer number (8893325897280).

Almost surely, 2380428374842670 is an apocalyptic number.

380428374842670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

380428374842670 is an abundant number, since it is smaller than the sum of its proper divisors (757917340009170).

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

380428374842670 is a wasteful number, since it uses less digits than its factorization.

380428374842670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612190.

The product of its (nonzero) digits is 346816512, while the sum is 66.

The spelling of 380428374842670 in words is "three hundred eighty trillion, four hundred twenty-eight billion, three hundred seventy-four million, eight hundred forty-two thousand, six hundred seventy".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 2310 46183 92366 138549 230915 277098 323281 461830 508013 646562 692745 969843 1016026 1385490 1524039 1616405 1939686 2540065 3048078 3232810 3556091 3565979 4849215 5080130 7112182 7131958 7620195 9698430 10668273 10697937 15240390 17780455 17829895 21336546 21395874 24961853 35560910 35659790 39225769 49923706 53341365 53489685 74885559 78451538 106682730 106979370 117677307 124809265 149771118 196128845 235354614 249618530 274580383 374427795 392257690 549160766 588386535 748855590 823741149 1176773070 1372901915 1647482298 2745803830 4118705745 8237411490 164687608157 329375216314 494062824471 823438040785 988125648942 1152813257099 1646876081570 1811563689727 2305626514198 2470314122355 3458439771297 3623127379454 4940628244710 5434691069181 5764066285495 6916879542594 9057818448635 10869382138362 11528132570990 12680945828089 17292198856485 18115636897270 25361891656178 27173455345905 34584397712970 38042837484267 54346910691810 63404729140445 76085674968534 126809458280890 190214187421335 380428374842670