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12542343 = 311380071
BaseRepresentation
bin101111110110…
…000110000111
3212121012212020
4233312012013
511202323333
61124454223
7211415412
oct57660607
925535766
1012542343
117097280
12424a373
1327a1b08
141946b79
15117b3b3
hexbf6187

12542343 has 8 divisors (see below), whose sum is σ = 18243456. Its totient is φ = 7601400.

The previous prime is 12542329. The next prime is 12542347. The reversal of 12542343 is 34324521.

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

It is not a de Polignac number, because 12542343 - 28 = 12542087 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542347) 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, 190003 + ... + 190068.

It is an arithmetic number, because the mean of its divisors is an integer number (2280432).

Almost surely, 212542343 is an apocalyptic number.

12542343 is a deficient number, since it is larger than the sum of its proper divisors (5701113).

12542343 is a wasteful number, since it uses less digits than its factorization.

12542343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380085.

The product of its digits is 2880, while the sum is 24.

The square root of 12542343 is about 3541.5170478200. The cubic root of 12542343 is about 232.3411980694.

Adding to 12542343 its reverse (34324521), we get a palindrome (46866864).

The spelling of 12542343 in words is "twelve million, five hundred forty-two thousand, three hundred forty-three".

Divisors: 1 3 11 33 380071 1140213 4180781 12542343