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11912184930 = 2353112808801
BaseRepresentation
bin10110001100000010…
…11000010001100010
31010202011212200201110
423012001120101202
5143344004404210
65250011244150
7601123621062
oct130601302142
933664780643
1011912184930
115063132938
122385449656
13117abc9249
148100bd3a2
1549abc6420
hex2c6058462

11912184930 has 32 divisors (see below), whose sum is σ = 29511479808. Its totient is φ = 3074112000.

The previous prime is 11912184923. The next prime is 11912184941. The reversal of 11912184930 is 3948121911.

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, 6403471 + ... + 6405330.

It is an arithmetic number, because the mean of its divisors is an integer number (922233744).

Almost surely, 211912184930 is an apocalyptic number.

11912184930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11912184930 is an abundant number, since it is smaller than the sum of its proper divisors (17599294878).

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

11912184930 is a wasteful number, since it uses less digits than its factorization.

11912184930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808842.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 11912184930 in words is "eleven billion, nine hundred twelve million, one hundred eighty-four thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 12808801 25617602 38426403 64044005 76852806 128088010 192132015 384264030 397072831 794145662 1191218493 1985364155 2382436986 3970728310 5956092465 11912184930