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11987066 = 27213972
BaseRepresentation
bin101101101110…
…100001111010
3211120000011102
4231232201322
511032041231
61104531402
7203613500
oct55564172
924500142
1011987066
116848073
124020b62
132639150
141840670
1510bbacb
hexb6e87a

11987066 has 36 divisors (see below), whose sum is σ = 22759758. Its totient is φ = 4693248.

The previous prime is 11987051. The next prime is 11987077. The reversal of 11987066 is 66078911.

It can be written as a sum of positive squares in 3 ways, for example, as 7722841 + 4264225 = 2779^2 + 2065^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 123530 + ... + 123626.

Almost surely, 211987066 is an apocalyptic number.

11987066 is a deficient number, since it is larger than the sum of its proper divisors (10772692).

11987066 is an equidigital number, since it uses as much as digits as its factorization.

11987066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 11987066 is about 3462.2342497295. The cubic root of 11987066 is about 228.8605648630.

The spelling of 11987066 in words is "eleven million, nine hundred eighty-seven thousand, sixty-six".

Divisors: 1 2 7 13 14 26 49 91 97 98 182 194 637 679 1261 1274 1358 2522 4753 8827 9409 9506 17654 18818 61789 65863 122317 123578 131726 244634 461041 856219 922082 1712438 5993533 11987066