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12541412 = 2213433557
BaseRepresentation
bin101111110101…
…110111100100
3212121011120202
4233311313210
511202311122
61124450032
7211412612
oct57656744
925534522
1012541412
117096604
124249918
1327a1570
1419466b2
15117ae92
hexbf5de4

12541412 has 24 divisors (see below), whose sum is σ = 23732856. Its totient is φ = 5764608.

The previous prime is 12541411. The next prime is 12541439. The reversal of 12541412 is 21414521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 872356 + 11669056 = 934^2 + 3416^2 .

It is a super-3 number, since 3×125414123 (a number of 22 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12541411) 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, 22238 + ... + 22794.

It is an arithmetic number, because the mean of its divisors is an integer number (988869).

Almost surely, 212541412 is an apocalyptic number.

It is an amenable number.

12541412 is a deficient number, since it is larger than the sum of its proper divisors (11191444).

12541412 is a wasteful number, since it uses less digits than its factorization.

12541412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 12541412 is about 3541.3856045339. The cubic root of 12541412 is about 232.3354491433.

Adding to 12541412 its reverse (21414521), we get a palindrome (33955933).

The spelling of 12541412 in words is "twelve million, five hundred forty-one thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 433 557 866 1114 1732 2228 5629 7241 11258 14482 22516 28964 241181 482362 964724 3135353 6270706 12541412