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802426 = 2421953
BaseRepresentation
bin11000011111001111010
31111202201111
43003321322
5201134201
625110534
76551302
oct3037172
91452644
10802426
114a8969
1232844a
13221311
1416c602
1510cb51
hexc3e7a

802426 has 8 divisors (see below), whose sum is σ = 1207764. Its totient is φ = 399840.

The previous prime is 802421. The next prime is 802441. The reversal of 802426 is 624208.

It can be written as a sum of positive squares in 2 ways, for example, as 680625 + 121801 = 825^2 + 349^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 802397 and 802406.

It is not an unprimeable number, because it can be changed into a prime (802421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366 + ... + 1318.

2802426 is an apocalyptic number.

802426 is a deficient number, since it is larger than the sum of its proper divisors (405338).

802426 is a wasteful number, since it uses less digits than its factorization.

802426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 802426 is about 895.7823396339. The cubic root of 802426 is about 92.9255194320.

The spelling of 802426 in words is "eight hundred two thousand, four hundred twenty-six".

Divisors: 1 2 421 842 953 1906 401213 802426