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11192920 = 235279823
BaseRepresentation
bin101010101100…
…101001011000
3210001122210121
4222230221120
510331133140
61035523024
7164065264
oct52545130
923048717
1011192920
116355452
1238b9474
13241b83b
1416b50a4
15eb164a
hexaaca58

11192920 has 16 divisors (see below), whose sum is σ = 25184160. Its totient is φ = 4477152.

The previous prime is 11192897. The next prime is 11192939. The reversal of 11192920 is 2929111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139872 + ... + 139951.

It is an arithmetic number, because the mean of its divisors is an integer number (1574010).

Almost surely, 211192920 is an apocalyptic number.

11192920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11192920 is an abundant number, since it is smaller than the sum of its proper divisors (13991240).

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

11192920 is a wasteful number, since it uses less digits than its factorization.

11192920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279834 (or 279830 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11192920 is about 3345.5821615976. The cubic root of 11192920 is about 223.6906337304.

The spelling of 11192920 in words is "eleven million, one hundred ninety-two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 279823 559646 1119292 1399115 2238584 2798230 5596460 11192920