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813682486 = 21921412697
BaseRepresentation
bin110000011111111…
…100111100110110
32002201002100112101
4300133330330312
53131300314421
6212424012314
726110121101
oct6037747466
92081070471
10813682486
11388336771
121a860109a
13cc763936
147a0cb738
154b67b191
hex307fcf36

813682486 has 8 divisors (see below), whose sum is σ = 1284761880. Its totient is φ = 385428528.

The previous prime is 813682469. The next prime is 813682489. The reversal of 813682486 is 684286318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813682489) 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 3 ways as a sum of consecutive naturals, for example, 10706311 + ... + 10706386.

It is an arithmetic number, because the mean of its divisors is an integer number (160595235).

Almost surely, 2813682486 is an apocalyptic number.

813682486 is a deficient number, since it is larger than the sum of its proper divisors (471079394).

813682486 is a wasteful number, since it uses less digits than its factorization.

813682486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21412718.

The product of its digits is 442368, while the sum is 46.

The square root of 813682486 is about 28525.1202626737. The cubic root of 813682486 is about 933.5802510259.

The spelling of 813682486 in words is "eight hundred thirteen million, six hundred eighty-two thousand, four hundred eighty-six".

Divisors: 1 2 19 38 21412697 42825394 406841243 813682486