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1808228748 = 223636123689
BaseRepresentation
bin110101111000111…
…0110000110001100
311200000111112112010
41223301312012030
512200401304443
6455232341220
762544455634
oct15361660614
94600445463
101808228748
11848775027
124256a4810
1322a811651
141322196c4
15a8b31733
hex6bc7618c

1808228748 has 24 divisors (see below), whose sum is σ = 4220041840. Its totient is φ = 602622720.

The previous prime is 1808228731. The next prime is 1808228797. The reversal of 1808228748 is 8478228081.

1808228748 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1808228697 and 1808228706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64488 + ... + 88176.

Almost surely, 21808228748 is an apocalyptic number.

It is an amenable number.

1808228748 is an abundant number, since it is smaller than the sum of its proper divisors (2411813092).

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

1808228748 is a wasteful number, since it uses less digits than its factorization.

1808228748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30057 (or 30055 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 48.

The square root of 1808228748 is about 42523.2730160791. The cubic root of 1808228748 is about 1218.2912448175.

The spelling of 1808228748 in words is "one billion, eight hundred eight million, two hundred twenty-eight thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 6361 12722 19083 23689 25444 38166 47378 71067 76332 94756 142134 284268 150685729 301371458 452057187 602742916 904114374 1808228748