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8049806806 = 26165982023
BaseRepresentation
bin1110111111100111…
…00100110111010110
3202210000010112222211
413133303210313112
5112441222304211
63410435144034
7403324141336
oct73763446726
922700115884
108049806806
1134609a6aa8
121687a4501a
139b39615c2
145651510c6
15321a87e21
hex1dfce4dd6

8049806806 has 8 divisors (see below), whose sum is σ = 12272656464. Its totient is φ = 3958921320.

The previous prime is 8049806789. The next prime is 8049806819. The reversal of 8049806806 is 6086089408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×80498068062 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8049806806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32990890 + ... + 32991133.

It is an arithmetic number, because the mean of its divisors is an integer number (1534082058).

Almost surely, 28049806806 is an apocalyptic number.

8049806806 is a deficient number, since it is larger than the sum of its proper divisors (4222849658).

8049806806 is a wasteful number, since it uses less digits than its factorization.

8049806806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65982086.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 8049806806 is about 89720.7155901022. The cubic root of 8049806806 is about 2004.1419832325.

The spelling of 8049806806 in words is "eight billion, forty-nine million, eight hundred six thousand, eight hundred six".

Divisors: 1 2 61 122 65982023 131964046 4024903403 8049806806