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6813400748 = 2271122121431
BaseRepresentation
bin1100101100001110…
…00011111010101100
3122120211121121201212
412112013003322230
5102423212310443
63044030453552
7330561644060
oct62607037254
918524547655
106813400748
112986a94910
1213a19642b8
1384776139b
14488c65aa0
1529d25a618
hex1961c3eac

6813400748 has 24 divisors (see below), whose sum is σ = 14865602304. Its totient is φ = 2654571600.

The previous prime is 6813400747. The next prime is 6813400807. The reversal of 6813400748 is 8470043186.

It is not an unprimeable number, because it can be changed into a prime (6813400747) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11060408 + ... + 11061023.

It is an arithmetic number, because the mean of its divisors is an integer number (619400096).

Almost surely, 26813400748 is an apocalyptic number.

It is an amenable number.

6813400748 is an abundant number, since it is smaller than the sum of its proper divisors (8052201556).

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

6813400748 is a wasteful number, since it uses less digits than its factorization.

6813400748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22121453 (or 22121451 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 6813400748 is about 82543.3264897896. The cubic root of 6813400748 is about 1895.7801776369.

The spelling of 6813400748 in words is "six billion, eight hundred thirteen million, four hundred thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 22121431 44242862 88485724 154850017 243335741 309700034 486671482 619400068 973342964 1703350187 3406700374 6813400748