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3815068320 = 2532572931421
BaseRepresentation
bin1110001101100101…
…0101001010100000
3100211212201112212200
43203121111022200
530303124141240
61430322053200
7163353355110
oct34331251240
910755645780
103815068320
111688563328
128a57aa200
1348a511b9b
14282975040
15174de5930
hexe36552a0

3815068320 has 576 divisors, whose sum is σ = 15926077440. Its totient is φ = 812851200.

The previous prime is 3815068247. The next prime is 3815068321. The reversal of 3815068320 is 238605183.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3815068321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9061710 + ... + 9062130.

It is an arithmetic number, because the mean of its divisors is an integer number (27649440).

Almost surely, 23815068320 is an apocalyptic number.

3815068320 is a gapful number since it is divisible by the number (30) 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 3815068320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7963038720).

3815068320 is an abundant number, since it is smaller than the sum of its proper divisors (12111009120).

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

3815068320 is a wasteful number, since it uses less digits than its factorization.

3815068320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3815068320 is about 61766.2393221410. The cubic root of 3815068320 is about 1562.5506596482.

The spelling of 3815068320 in words is "three billion, eight hundred fifteen million, sixty-eight thousand, three hundred twenty".