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6813387360 = 2533513121321
BaseRepresentation
bin1100101100001110…
…00000101001100000
3122120211120221101000
412112013000221200
5102423211343420
63044030312000
7330561560043
oct62607005140
918524527330
106813387360
112986a8584a
1213a1958600
13847758270
14488c60c5a
1529d256690
hex1961c0a60

6813387360 has 192 divisors, whose sum is σ = 25681440960. Its totient is φ = 1677127680.

The previous prime is 6813387353. The next prime is 6813387377. The reversal of 6813387360 is 637833186.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4501 + ... + 116820.

It is an arithmetic number, because the mean of its divisors is an integer number (133757505).

Almost surely, 26813387360 is an apocalyptic number.

6813387360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6813387360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12840720480).

6813387360 is an abundant number, since it is smaller than the sum of its proper divisors (18868053600).

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

6813387360 is a wasteful number, since it uses less digits than its factorization.

6813387360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121358 (or 121344 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 6813387360 is about 82543.2453929454. The cubic root of 6813387360 is about 1895.7789359309.

The spelling of 6813387360 in words is "six billion, eight hundred thirteen million, three hundred eighty-seven thousand, three hundred sixty".