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819817341 = 3785745553
BaseRepresentation
bin110000110111010…
…110101101111101
32010010122000222020
4300313112231331
53134333123331
6213203310353
726213222010
oct6067265575
92103560866
10819817341
113908469a2
121aa67b3b9
13100b01125
147ac47377
154be8dc96
hex30dd6b7d

819817341 has 16 divisors (see below), whose sum is σ = 1250730624. Its totient is φ = 467910144.

The previous prime is 819817321. The next prime is 819817357. The reversal of 819817341 is 143718918.

It is not a de Polignac number, because 819817341 - 214 = 819800957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 819817293 and 819817302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819817321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4780 + ... + 40773.

It is an arithmetic number, because the mean of its divisors is an integer number (78170664).

Almost surely, 2819817341 is an apocalyptic number.

It is an amenable number.

819817341 is a deficient number, since it is larger than the sum of its proper divisors (430913283).

819817341 is a wasteful number, since it uses less digits than its factorization.

819817341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46420.

The product of its digits is 48384, while the sum is 42.

The square root of 819817341 is about 28632.4525844364. The cubic root of 819817341 is about 935.9206583616.

The spelling of 819817341 in words is "eight hundred nineteen million, eight hundred seventeen thousand, three hundred forty-one".

Divisors: 1 3 7 21 857 2571 5999 17997 45553 136659 318871 956613 39038921 117116763 273272447 819817341