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12125284 = 22173617
BaseRepresentation
bin101110010000…
…010001100100
3211211000202121
4232100101210
511101002114
61111515324
7205030453
oct56202144
924730677
1012125284
1169319a6
124088b44
132687032
141878b9a
1510e7a24
hexb90464

12125284 has 24 divisors (see below), whose sum is σ = 22581720. Its totient is φ = 5696768.

The previous prime is 12125273. The next prime is 12125293. The reversal of 12125284 is 48252121.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 11902500 = 472^2 + 3450^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19344 + ... + 19960.

It is an arithmetic number, because the mean of its divisors is an integer number (940905).

Almost surely, 212125284 is an apocalyptic number.

It is an amenable number.

12125284 is a deficient number, since it is larger than the sum of its proper divisors (10456436).

12125284 is an equidigital number, since it uses as much as digits as its factorization.

12125284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 636 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 12125284 is about 3482.1378490806. The cubic root of 12125284 is about 229.7368382665.

The spelling of 12125284 in words is "twelve million, one hundred twenty-five thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 289 578 617 1156 1234 2468 4913 9826 10489 19652 20978 41956 178313 356626 713252 3031321 6062642 12125284