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16806078240 = 253575001809
BaseRepresentation
bin11111010011011100…
…00110011100100000
31121101020121020021020
433221232012130200
5233404324000430
611415352325440
71133320210440
oct175156063440
947336536236
1016806078240
117144658366
1233103a3880
13177aa868c3
14b56040120
1568566db10
hex3e9b86720

16806078240 has 96 divisors (see below), whose sum is σ = 60501893760. Its totient is φ = 3841388544.

The previous prime is 16806078209. The next prime is 16806078257. The reversal of 16806078240 is 4287060861.

16806078240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 16806078192 and 16806078201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2497545 + ... + 2504264.

It is an arithmetic number, because the mean of its divisors is an integer number (630228060).

Almost surely, 216806078240 is an apocalyptic number.

16806078240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16806078240 is an abundant number, since it is smaller than the sum of its proper divisors (43695815520).

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

16806078240 is a wasteful number, since it uses less digits than its factorization.

16806078240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001834 (or 5001826 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 16806078240 in words is "sixteen billion, eight hundred six million, seventy-eight thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 5001809 10003618 15005427 20007236 25009045 30010854 35012663 40014472 50018090 60021708 70025326 75027135 80028944 100036180 105037989 120043416 140050652 150054270 160057888 175063315 200072360 210075978 240086832 280101304 300108540 350126630 400144720 420151956 480173664 525189945 560202608 600217080 700253260 800289440 840303912 1050379890 1120405216 1200434160 1400506520 1680607824 2100759780 2400868320 2801013040 3361215648 4201519560 5602026080 8403039120 16806078240