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11681080 = 235292027
BaseRepresentation
bin101100100011…
…110100111000
3210222110102121
4230203310320
510442243310
61054211024
7201200425
oct54436470
923873377
1011681080
116659194
123ab3a74
13255caa8
1417a0d4c
15105b0da
hexb23d38

11681080 has 16 divisors (see below), whose sum is σ = 26282520. Its totient is φ = 4672416.

The previous prime is 11681077. The next prime is 11681081. The reversal of 11681080 is 8018611.

It is a happy number.

11681080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145974 + ... + 146053.

Almost surely, 211681080 is an apocalyptic number.

11681080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11681080 is an abundant number, since it is smaller than the sum of its proper divisors (14601440).

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

11681080 is a wasteful number, since it uses less digits than its factorization.

11681080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292038 (or 292034 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 11681080 is about 3417.7595000234. The cubic root of 11681080 is about 226.8964317598.

Adding to 11681080 its reverse (8018611), we get a palindrome (19699691).

The spelling of 11681080 in words is "eleven million, six hundred eighty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 292027 584054 1168108 1460135 2336216 2920270 5840540 11681080