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1808930334 = 23940332063
BaseRepresentation
bin110101111010010…
…0001011000011110
311200001211011220210
41223310201120132
512201041232314
6455255353250
762553440241
oct15364413036
94601734823
101808930334
11849104152
12425982826
1322a9c8aa3
1413235d258
15a8c1e559
hex6bd2161e

1808930334 has 16 divisors (see below), whose sum is σ = 3618358272. Its totient is φ = 602893848.

The previous prime is 1808930323. The next prime is 1808930353. The reversal of 1808930334 is 4330398081.

It is a junction number, because it is equal to n+sod(n) for n = 1808930292 and 1808930301.

It is a congruent number.

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, 40387 + ... + 72449.

It is an arithmetic number, because the mean of its divisors is an integer number (226147392).

Almost surely, 21808930334 is an apocalyptic number.

1808930334 is an abundant number, since it is smaller than the sum of its proper divisors (1809427938).

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

1808930334 is a wasteful number, since it uses less digits than its factorization.

1808930334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41471.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1808930334 is about 42531.5216515939. The cubic root of 1808930334 is about 1218.4487885946.

The spelling of 1808930334 in words is "one billion, eight hundred eight million, nine hundred thirty thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9403 18806 28209 32063 56418 64126 96189 192378 301488389 602976778 904465167 1808930334