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11965208930 = 251543775451
BaseRepresentation
bin10110010010010111…
…01001100101100010
31010212212122120222022
423021023221211202
5144001043141210
65255143541442
7602336412023
oct131113514542
933785576868
1011965208930
115090059624
12239b15a882
131188ba2bac
14817162c4a
154a069c155
hex2c92e9962

11965208930 has 16 divisors (see below), whose sum is σ = 21551361984. Its totient is φ = 4782975600.

The previous prime is 11965208917. The next prime is 11965208989. The reversal of 11965208930 is 3980256911.

It is a happy 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, 372296 + ... + 403155.

It is an arithmetic number, because the mean of its divisors is an integer number (1346960124).

Almost surely, 211965208930 is an apocalyptic number.

11965208930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11965208930 is a deficient number, since it is larger than the sum of its proper divisors (9586153054).

11965208930 is a wasteful number, since it uses less digits than its factorization.

11965208930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777001.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 11965208930 in words is "eleven billion, nine hundred sixty-five million, two hundred eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 1543 3086 7715 15430 775451 1550902 3877255 7754510 1196520893 2393041786 5982604465 11965208930