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8042642080 = 255114569683
BaseRepresentation
bin1110111110110000…
…01111101010100000
3202202111122112211121
413133120033222200
5112432404021310
63410021422024
7403206221044
oct73730175240
922674575747
108042642080
113457953040
12168556a914
139b2323415
14564208024
153211200da
hex1df60faa0

8042642080 has 48 divisors (see below), whose sum is σ = 20728086624. Its totient is φ = 2924596480.

The previous prime is 8042642059. The next prime is 8042642087. The reversal of 8042642080 is 802462408.

It is not an unprimeable number, because it can be changed into a prime (8042642087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2283082 + ... + 2286601.

It is an arithmetic number, because the mean of its divisors is an integer number (431835138).

Almost surely, 28042642080 is an apocalyptic number.

8042642080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8042642080 is an abundant number, since it is smaller than the sum of its proper divisors (12685444544).

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

8042642080 is a wasteful number, since it uses less digits than its factorization.

8042642080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569709 (or 4569701 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 8042642080 is about 89680.7787655750. The cubic root of 8042642080 is about 2003.5472115922.

The spelling of 8042642080 in words is "eight billion, forty-two million, six hundred forty-two thousand, eighty".