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12541272 = 233522553
BaseRepresentation
bin101111110101…
…110101011000
3212121011101120
4233311311120
511202310042
61124445240
7211412322
oct57656530
925534346
1012541272
117096497
124249820
1327a1493
141946612
15117adec
hexbf5d58

12541272 has 16 divisors (see below), whose sum is σ = 31353240. Its totient is φ = 4180416.

The previous prime is 12541247. The next prime is 12541283. The reversal of 12541272 is 27214521.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 522553 = 12541272 / (1 + 2 + 5 + 4 + 1 + 2 + 7 + 2).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261253 + ... + 261300.

Almost surely, 212541272 is an apocalyptic number.

12541272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12541272 is an abundant number, since it is smaller than the sum of its proper divisors (18811968).

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

12541272 is a wasteful number, since it uses less digits than its factorization.

12541272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522562 (or 522558 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 12541272 is about 3541.3658382042. The cubic root of 12541272 is about 232.3345846185.

Adding to 12541272 its reverse (27214521), we get a palindrome (39755793).

The spelling of 12541272 in words is "twelve million, five hundred forty-one thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 522553 1045106 1567659 2090212 3135318 4180424 6270636 12541272