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11930980 = 2255910111
BaseRepresentation
bin101101100000…
…110101100100
3211110011020011
4231200311210
511023242410
61103420004
7203261125
oct55406544
924404204
1011930980
116809a16
123bb4604
132619769
14182804c
1510aa18a
hexb60d64

11930980 has 24 divisors (see below), whose sum is σ = 25482240. Its totient is φ = 4691040.

The previous prime is 11930969. The next prime is 11930987. The reversal of 11930980 is 8903911.

It is not an unprimeable number, because it can be changed into a prime (11930987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3876 + ... + 6235.

It is an arithmetic number, because the mean of its divisors is an integer number (1061760).

Almost surely, 211930980 is an apocalyptic number.

11930980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11930980 is an abundant number, since it is smaller than the sum of its proper divisors (13551260).

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

11930980 is a wasteful number, since it uses less digits than its factorization.

11930980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179 (or 10177 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 11930980 is about 3454.1250701154. The cubic root of 11930980 is about 228.5030699599.

The spelling of 11930980 in words is "eleven million, nine hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 10111 20222 40444 50555 101110 202220 596549 1193098 2386196 2982745 5965490 11930980