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12113808 = 2437311163
BaseRepresentation
bin101110001101…
…011110010000
3211210110000120
4232031132100
511100120213
61111350240
7204652140
oct56153620
924713016
1012113808
116924313
124082380
132681a45
141874920
1510e4423
hexb8d790

12113808 has 80 divisors (see below), whose sum is σ = 36950016. Its totient is φ = 3346560.

The previous prime is 12113797. The next prime is 12113813. The reversal of 12113808 is 80831121.

12113808 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 Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9835 + ... + 10997.

Almost surely, 212113808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18475008).

12113808 is an abundant number, since it is smaller than the sum of its proper divisors (24836208).

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

12113808 is a wasteful number, since it uses less digits than its factorization.

12113808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 12113808 is about 3480.4896207287. The cubic root of 12113808 is about 229.6643370876.

Adding to 12113808 its reverse (80831121), we get a palindrome (92944929).

It can be divided in two parts, 12113 and 808, that added together give a palindrome (12921).

The spelling of 12113808 in words is "twelve million, one hundred thirteen thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 42 48 56 62 84 93 112 124 168 186 217 248 336 372 434 496 651 744 868 1163 1302 1488 1736 2326 2604 3472 3489 4652 5208 6978 8141 9304 10416 13956 16282 18608 24423 27912 32564 36053 48846 55824 65128 72106 97692 108159 130256 144212 195384 216318 252371 288424 390768 432636 504742 576848 757113 865272 1009484 1514226 1730544 2018968 3028452 4037936 6056904 12113808