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11990112 = 253124897
BaseRepresentation
bin101101101111…
…010001100000
3211120011100020
4231233101200
511032140422
61104553440
7203625411
oct55572140
924504306
1011990112
11684a392
124022880
13263a654
141841808
1510bc95c
hexb6f460

11990112 has 24 divisors (see below), whose sum is σ = 31474296. Its totient is φ = 3996672.

The previous prime is 11990101. The next prime is 11990113. The reversal of 11990112 is 21109911.

11990112 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990113) 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, 62353 + ... + 62544.

It is an arithmetic number, because the mean of its divisors is an integer number (1311429).

Almost surely, 211990112 is an apocalyptic number.

11990112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11990112 is an abundant number, since it is smaller than the sum of its proper divisors (19484184).

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

11990112 is a wasteful number, since it uses less digits than its factorization.

11990112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124910 (or 124902 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 11990112 is about 3462.6741111459. The cubic root of 11990112 is about 228.8799482618.

The spelling of 11990112 in words is "eleven million, nine hundred ninety thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 124897 249794 374691 499588 749382 999176 1498764 1998352 2997528 3996704 5995056 11990112