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12072672 = 253389157
BaseRepresentation
bin101110000011…
…011011100000
3211201100121000
4232003123200
511042311142
61110432000
7204421203
oct56033340
924640530
1012072672
1168a6417
124062600
1326690c1
14186393a
1510d714c
hexb836e0

12072672 has 96 divisors (see below), whose sum is σ = 35834400. Its totient is φ = 3953664.

The previous prime is 12072661. The next prime is 12072679. The reversal of 12072672 is 27627021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76818 + ... + 76974.

It is an arithmetic number, because the mean of its divisors is an integer number (373275).

Almost surely, 212072672 is an apocalyptic number.

12072672 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 12072672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17917200).

12072672 is an abundant number, since it is smaller than the sum of its proper divisors (23761728).

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

12072672 is a wasteful number, since it uses less digits than its factorization.

12072672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 12072672 is about 3474.5750819345. The cubic root of 12072672 is about 229.4040779882.

Adding to 12072672 its reverse (27627021), we get a palindrome (39699693).

The spelling of 12072672 in words is "twelve million, seventy-two thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 89 96 108 144 157 178 216 267 288 314 356 432 471 534 628 712 801 864 942 1068 1256 1413 1424 1602 1884 2136 2403 2512 2826 2848 3204 3768 4239 4272 4806 5024 5652 6408 7536 8478 8544 9612 11304 12816 13973 15072 16956 19224 22608 25632 27946 33912 38448 41919 45216 55892 67824 76896 83838 111784 125757 135648 167676 223568 251514 335352 377271 447136 503028 670704 754542 1006056 1341408 1509084 2012112 3018168 4024224 6036336 12072672