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7215716480 = 27572435351
BaseRepresentation
bin1101011100001011…
…10001100010000000
3200121212122101011112
412232011301202000
5104234210411410
63152001502452
7343545402200
oct65605614200
920555571145
107215716480
1130730a1655
121494641a28
138acc03a2b
144c6470400
152c372a105
hex1ae171880

7215716480 has 192 divisors, whose sum is σ = 20536908480. Its totient is φ = 2415974400.

The previous prime is 7215716467. The next prime is 7215716483. The reversal of 7215716480 is 846175127.

It is not an unprimeable number, because it can be changed into a prime (7215716483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1345805 + ... + 1351155.

It is an arithmetic number, because the mean of its divisors is an integer number (106963065).

Almost surely, 27215716480 is an apocalyptic number.

7215716480 is a gapful number since it is divisible by the number (70) 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 7215716480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10268454240).

7215716480 is an abundant number, since it is smaller than the sum of its proper divisors (13321192000).

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

7215716480 is a wasteful number, since it uses less digits than its factorization.

7215716480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427 (or 5408 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 7215716480 is about 84945.3735055653. The cubic root of 7215716480 is about 1932.3827569036.

The spelling of 7215716480 in words is "seven billion, two hundred fifteen million, seven hundred sixteen thousand, four hundred eighty".