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8242501680 = 243557217509
BaseRepresentation
bin1111010110100101…
…01001100000110000
3210021102201110200000
413223102221200300
5113340040023210
63441521230000
7411154052100
oct75322514060
923242643600
108242501680
11354a74a566
121720492300
13a1485b83a
14582991200
1533394cac0
hex1eb4a9830

8242501680 has 720 divisors, whose sum is σ = 35426795040. Its totient is φ = 1769693184.

The previous prime is 8242501649. The next prime is 8242501691. The reversal of 8242501680 is 861052428.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16193266 + ... + 16193774.

It is an arithmetic number, because the mean of its divisors is an integer number (49203882).

Almost surely, 28242501680 is an apocalyptic number.

8242501680 is a gapful number since it is divisible by the number (80) 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 8242501680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17713397520).

8242501680 is an abundant number, since it is smaller than the sum of its proper divisors (27184293360).

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

8242501680 is a wasteful number, since it uses less digits than its factorization.

8242501680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8242501680 is about 90788.2243465528. The cubic root of 8242501680 is about 2020.0076528155.

The spelling of 8242501680 in words is "eight billion, two hundred forty-two million, five hundred one thousand, six hundred eighty".