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1806808848 = 2431310727061
BaseRepresentation
bin110101110110001…
…1011011100010000
311122220211101210020
41223230123130100
512200020340343
6455142103440
762526423165
oct15354333420
94586741706
101806808848
11847995259
1242511ab80
1322a435280
14131d6a06c
15a8950b83
hex6bb1b710

1806808848 has 80 divisors (see below), whose sum is σ = 5073800256. Its totient is φ = 550725120.

The previous prime is 1806808831. The next prime is 1806808853. The reversal of 1806808848 is 8488086081.

1806808848 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×18068088482 = 6529116426422174208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1806808848.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53238 + ... + 80298.

Almost surely, 21806808848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806808848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2536900128).

1806808848 is an abundant number, since it is smaller than the sum of its proper divisors (3266991408).

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

1806808848 is a wasteful number, since it uses less digits than its factorization.

1806808848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27192 (or 27186 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 51.

The square root of 1806808848 is about 42506.5741738851. The cubic root of 1806808848 is about 1217.9722761909.

The spelling of 1806808848 in words is "one billion, eight hundred six million, eight hundred eight thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 107 156 208 214 312 321 428 624 642 856 1284 1391 1712 2568 2782 4173 5136 5564 8346 11128 16692 22256 27061 33384 54122 66768 81183 108244 162366 216488 324732 351793 432976 649464 703586 1055379 1298928 1407172 2110758 2814344 2895527 4221516 5628688 5791054 8443032 8686581 11582108 16886064 17373162 23164216 34746324 37641851 46328432 69492648 75283702 112925553 138985296 150567404 225851106 301134808 451702212 602269616 903404424 1806808848