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12030144 = 26378951
BaseRepresentation
bin101101111001…
…000011000000
3211122012020220
4231321003000
511034431034
61105503040
7204153210
oct55710300
924565226
1012030144
116877475
124041a80
132652939
141852240
1510c9749
hexb790c0

12030144 has 56 divisors (see below), whose sum is σ = 36380928. Its totient is φ = 3436800.

The previous prime is 12030131. The next prime is 12030149. The reversal of 12030144 is 44103021.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (12030149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3132 + ... + 5819.

Almost surely, 212030144 is an apocalyptic number.

12030144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12030144 is an abundant number, since it is smaller than the sum of its proper divisors (24350784).

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

12030144 is an equidigital number, since it uses as much as digits as its factorization.

12030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8973 (or 8963 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12030144 is about 3468.4497978203. The cubic root of 12030144 is about 229.1343896948.

Adding to 12030144 its reverse (44103021), we get a palindrome (56133165).

The spelling of 12030144 in words is "twelve million, thirty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 8951 17902 26853 35804 53706 62657 71608 107412 125314 143216 187971 214824 250628 286432 375942 429648 501256 572864 751884 859296 1002512 1503768 1718592 2005024 3007536 4010048 6015072 12030144