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12540414 = 232090069
BaseRepresentation
bin101111110101…
…100111111110
3212121010012210
4233311213332
511202243124
61124441250
7211406655
oct57654776
925533183
1012540414
117095887
124249226
1327a0c83
14194619c
15117aa29
hexbf59fe

12540414 has 8 divisors (see below), whose sum is σ = 25080840. Its totient is φ = 4180136.

The previous prime is 12540413. The next prime is 12540419. The reversal of 12540414 is 41404521.

It is a happy number.

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

12540414 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045029 + ... + 1045040.

It is an arithmetic number, because the mean of its divisors is an integer number (3135105).

Almost surely, 212540414 is an apocalyptic number.

12540414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12540414 is a wasteful number, since it uses less digits than its factorization.

12540414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090074.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12540414 is about 3541.2446964309. The cubic root of 12540414 is about 232.3292861762.

Adding to 12540414 its reverse (41404521), we get a palindrome (53944935).

The spelling of 12540414 in words is "twelve million, five hundred forty thousand, four hundred fourteen".

Divisors: 1 2 3 6 2090069 4180138 6270207 12540414