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805620480 = 28357174143
BaseRepresentation
bin110000000001001…
…100101100000000
32002010220202112120
4300001030230000
53122214323410
6211535124240
725651442520
oct6001145400
92063822476
10805620480
1138382a655
121a5973680
13caba0212
1478dcd680
154aad7570
hex3004cb00

805620480 has 576 divisors, whose sum is σ = 3263597568. Its totient is φ = 165150720.

The previous prime is 805620469. The next prime is 805620533. The reversal of 805620480 is 84026508.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18735339 + ... + 18735381.

It is an arithmetic number, because the mean of its divisors is an integer number (5665968).

Almost surely, 2805620480 is an apocalyptic number.

805620480 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 805620480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1631798784).

805620480 is an abundant number, since it is smaller than the sum of its proper divisors (2457977088).

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

805620480 is a wasteful number, since it uses less digits than its factorization.

805620480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 805620480 is about 28383.4543352285. The cubic root of 805620480 is about 930.4866917257.

Adding to 805620480 its reverse (84026508), we get a palindrome (889646988).

The spelling of 805620480 in words is "eight hundred five million, six hundred twenty thousand, four hundred eighty".