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12542054 = 27895861
BaseRepresentation
bin101111110110…
…000001100110
3212121012110112
4233312001212
511202321204
61124453022
7211414520
oct57660146
925535415
1012542054
117097038
12424a172
1327a1945
141946a10
15117b26e
hexbf6066

12542054 has 8 divisors (see below), whose sum is σ = 21500688. Its totient is φ = 5375160.

The previous prime is 12542029. The next prime is 12542059. The reversal of 12542054 is 45024521.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447917 + ... + 447944.

It is an arithmetic number, because the mean of its divisors is an integer number (2687586).

Almost surely, 212542054 is an apocalyptic number.

12542054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12542054 is a deficient number, since it is larger than the sum of its proper divisors (8958634).

12542054 is an equidigital number, since it uses as much as digits as its factorization.

12542054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895870.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 12542054 is about 3541.4762458613. The cubic root of 12542054 is about 232.3394135245.

Adding to 12542054 its reverse (45024521), we get a palindrome (57566575).

The spelling of 12542054 in words is "twelve million, five hundred forty-two thousand, fifty-four".

Divisors: 1 2 7 14 895861 1791722 6271027 12542054