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12532457 = 71994229
BaseRepresentation
bin101111110011…
…101011101001
3212120201022002
4233303223221
511202014312
61124340345
7211344530
oct57635351
925521262
1012532457
11708a903
1242446b5
13279a472
141943317
1511784c2
hexbf3ae9

12532457 has 8 divisors (see below), whose sum is σ = 15076800. Its totient is φ = 10176624.

The previous prime is 12532439. The next prime is 12532459. The reversal of 12532457 is 75423521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12532457 - 214 = 12516073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12532459) 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, 46982 + ... + 47247.

It is an arithmetic number, because the mean of its divisors is an integer number (1884600).

Almost surely, 212532457 is an apocalyptic number.

It is an amenable number.

12532457 is a deficient number, since it is larger than the sum of its proper divisors (2544343).

12532457 is an equidigital number, since it uses as much as digits as its factorization.

12532457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94255.

The product of its digits is 8400, while the sum is 29.

The square root of 12532457 is about 3540.1210431283. The cubic root of 12532457 is about 232.2801374729.

Adding to 12532457 its reverse (75423521), we get a palindrome (87955978).

The spelling of 12532457 in words is "twelve million, five hundred thirty-two thousand, four hundred fifty-seven".

Divisors: 1 7 19 133 94229 659603 1790351 12532457