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11988072 = 23323141131
BaseRepresentation
bin101101101110…
…110001101000
3211120001112200
4231232301220
511032104242
61104540200
7203616435
oct55566150
924501480
1011988072
1168488a8
124021660
132639745
141840b8c
1510bc04c
hexb6ec68

11988072 has 96 divisors (see below), whose sum is σ = 34594560. Its totient is φ = 3744000.

The previous prime is 11988061. The next prime is 11988091. The reversal of 11988072 is 27088911.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 91447 + ... + 91577.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

Almost surely, 211988072 is an apocalyptic number.

11988072 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 11988072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17297280).

11988072 is an abundant number, since it is smaller than the sum of its proper divisors (22606488).

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

11988072 is a wasteful number, since it uses less digits than its factorization.

11988072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 11988072 is about 3462.3795285901. The cubic root of 11988072 is about 228.8669669659.

The spelling of 11988072 in words is "eleven million, nine hundred eighty-eight thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 41 62 72 82 93 123 124 131 164 186 246 248 262 279 328 369 372 393 492 524 558 738 744 786 984 1048 1116 1179 1271 1476 1572 2232 2358 2542 2952 3144 3813 4061 4716 5084 5371 7626 8122 9432 10168 10742 11439 12183 15252 16113 16244 21484 22878 24366 30504 32226 32488 36549 42968 45756 48339 48732 64452 73098 91512 96678 97464 128904 146196 166501 193356 292392 333002 386712 499503 666004 999006 1332008 1498509 1998012 2997018 3996024 5994036 11988072