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6829490420 = 225341474521
BaseRepresentation
bin1100101110001000…
…11100000011110100
3122121221220001121122
412113010130003310
5102441322143140
63045403403112
7331145465534
oct62704340364
918557801548
106829490420
112995084265
1213a7223498
1384aba59bc
1448b0534c4
1529e887ab5
hex19711c0f4

6829490420 has 12 divisors (see below), whose sum is σ = 14341929924. Its totient is φ = 2731796160.

The previous prime is 6829490387. The next prime is 6829490443. The reversal of 6829490420 is 240949286.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1616361616 + 5213128804 = 40204^2 + 72202^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170737241 + ... + 170737280.

It is an arithmetic number, because the mean of its divisors is an integer number (1195160827).

Almost surely, 26829490420 is an apocalyptic number.

It is an amenable number.

6829490420 is an abundant number, since it is smaller than the sum of its proper divisors (7512439504).

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

6829490420 is a wasteful number, since it uses less digits than its factorization.

6829490420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341474530 (or 341474528 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 6829490420 is about 82640.7309987031. The cubic root of 6829490420 is about 1897.2712833535.

The spelling of 6829490420 in words is "six billion, eight hundred twenty-nine million, four hundred ninety thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 341474521 682949042 1365898084 1707372605 3414745210 6829490420