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11241680 = 245140521
BaseRepresentation
bin101010111000…
…100011010000
3210011010200112
4222320203100
510334213210
61040540452
7164360402
oct52704320
923133615
1011241680
11638904a
123921728
132437aa8
1416c8b72
15ec0d05
hexab88d0

11241680 has 20 divisors (see below), whose sum is σ = 26137092. Its totient is φ = 4496640.

The previous prime is 11241677. The next prime is 11241689. The reversal of 11241680 is 8614211.

It can be written as a sum of positive squares in 2 ways, for example, as 4293184 + 6948496 = 2072^2 + 2636^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11241689) 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, 70181 + ... + 70340.

Almost surely, 211241680 is an apocalyptic number.

11241680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11241680 is an abundant number, since it is smaller than the sum of its proper divisors (14895412).

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

11241680 is a wasteful number, since it uses less digits than its factorization.

11241680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140534 (or 140528 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11241680 is about 3352.8614644808. The cubic root of 11241680 is about 224.0149862423.

Adding to 11241680 its reverse (8614211), we get a palindrome (19855891).

The spelling of 11241680 in words is "eleven million, two hundred forty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 140521 281042 562084 702605 1124168 1405210 2248336 2810420 5620840 11241680