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11889492 = 2233121031
BaseRepresentation
bin101101010110…
…101101010100
3211101001022120
4231112231110
511020430432
61102455540
7203026146
oct55265524
924331276
1011889492
11679082a
123b945b0
132603904
141816c96
15109cc2c
hexb56b54

11889492 has 36 divisors (see below), whose sum is σ = 28693728. Its totient is φ = 3831600.

The previous prime is 11889491. The next prime is 11889529. The reversal of 11889492 is 29498811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889491) by changing a digit.

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, 11017 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (797048).

Almost surely, 211889492 is an apocalyptic number.

11889492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11889492 is an abundant number, since it is smaller than the sum of its proper divisors (16804236).

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

11889492 is a wasteful number, since it uses less digits than its factorization.

11889492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1067 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 11889492 is about 3448.1142672481. The cubic root of 11889492 is about 228.2379018799.

The spelling of 11889492 in words is "eleven million, eight hundred eighty-nine thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 961 1031 1922 2062 2883 3093 3844 4124 5766 6186 11532 12372 31961 63922 95883 127844 191766 383532 990791 1981582 2972373 3963164 5944746 11889492