Search a number
-
+
11987300 = 2252139221
BaseRepresentation
bin101101101110…
…100101100100
3211120000111002
4231232211210
511032043200
61104532432
7203614253
oct55564544
924500432
1011987300
116848266
124021118
1326392a0
14184079a
1510bbbd5
hexb6e964

11987300 has 36 divisors (see below), whose sum is σ = 28016436. Its totient is φ = 4425600.

The previous prime is 11987299. The next prime is 11987323. The reversal of 11987300 is 378911.

It can be written as a sum of positive squares in 6 ways, for example, as 98596 + 11888704 = 314^2 + 3448^2 .

It is a super-2 number, since 2×119873002 = 287390722580000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3311 + ... + 5910.

Almost surely, 211987300 is an apocalyptic number.

11987300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11987300 is an abundant number, since it is smaller than the sum of its proper divisors (16029136).

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

11987300 is a wasteful number, since it uses less digits than its factorization.

11987300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248 (or 9241 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 11987300 is about 3462.2680427720. The cubic root of 11987300 is about 228.8620540521.

The spelling of 11987300 in words is "eleven million, nine hundred eighty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 9221 18442 36884 46105 92210 119873 184420 230525 239746 461050 479492 599365 922100 1198730 2397460 2996825 5993650 11987300