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11272180 = 2252632143
BaseRepresentation
bin101010111111…
…111111110100
3210012200112011
4222333333310
510341202210
61041334004
7164545333
oct52777764
923180464
1011272180
1163a9a57
123937304
13244893a
1416d5d1a
15ec9d8a
hexabfff4

11272180 has 24 divisors (see below), whose sum is σ = 23772672. Its totient is φ = 4489632.

The previous prime is 11272169. The next prime is 11272181. The reversal of 11272180 is 8127211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (990528).

Almost surely, 211272180 is an apocalyptic number.

11272180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11272180 is an abundant number, since it is smaller than the sum of its proper divisors (12500492).

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

11272180 is a wasteful number, since it uses less digits than its factorization.

11272180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2413 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11272180 is about 3357.4067373495. The cubic root of 11272180 is about 224.2173962999.

Adding to 11272180 its reverse (8127211), we get a palindrome (19399391).

The spelling of 11272180 in words is "eleven million, two hundred seventy-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 263 526 1052 1315 2143 2630 4286 5260 8572 10715 21430 42860 563609 1127218 2254436 2818045 5636090 11272180