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11878272 = 27337491
BaseRepresentation
bin101101010011…
…111110000000
3211100110221000
4231103332000
511020101042
61102332000
7202651350
oct55237600
924313830
1011878272
11678335a
123b8a000
1325cb783
141812b60
15109974c
hexb53f80

11878272 has 128 divisors (see below), whose sum is σ = 40147200. Its totient is φ = 3386880.

The previous prime is 11878271. The next prime is 11878289. The reversal of 11878272 is 27287811.

It is a happy number.

11878272 is digitally balanced in base 2, because in such base 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 (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23947 + ... + 24437.

It is an arithmetic number, because the mean of its divisors is an integer number (313650).

Almost surely, 211878272 is an apocalyptic number.

11878272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11878272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20073600).

11878272 is an abundant number, since it is smaller than the sum of its proper divisors (28268928).

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

11878272 is an equidigital number, since it uses as much as digits as its factorization.

11878272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 503 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 11878272 is about 3446.4869069822. The cubic root of 11878272 is about 228.1660839748.

The spelling of 11878272 in words is "eleven million, eight hundred seventy-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 288 336 378 384 432 448 491 504 576 672 756 864 896 982 1008 1152 1344 1473 1512 1728 1964 2016 2688 2946 3024 3437 3456 3928 4032 4419 5892 6048 6874 7856 8064 8838 10311 11784 12096 13257 13748 15712 17676 20622 23568 24192 26514 27496 30933 31424 35352 41244 47136 53028 54992 61866 62848 70704 82488 92799 94272 106056 109984 123732 141408 164976 185598 188544 212112 219968 247464 282816 329952 371196 424224 439936 494928 565632 659904 742392 848448 989856 1319808 1484784 1696896 1979712 2969568 3959424 5939136 11878272