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12542276 = 227342953
BaseRepresentation
bin101111110110…
…000101000100
3212121012202202
4233312011010
511202323101
61124454032
7211415255
oct57660504
925535682
1012542276
11709721a
12424a318
1327a1a86
141946b2c
15117b36b
hexbf6144

12542276 has 12 divisors (see below), whose sum is σ = 22250172. Its totient is φ = 6185088.

The previous prime is 12542273. The next prime is 12542287. The reversal of 12542276 is 67224521.

It is a happy number.

12542276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3385600 + 9156676 = 1840^2 + 3026^2 .

It is not an unprimeable number, because it can be changed into a prime (12542273) 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, 21185 + ... + 21768.

It is an arithmetic number, because the mean of its divisors is an integer number (1854181).

Almost surely, 212542276 is an apocalyptic number.

It is an amenable number.

12542276 is a deficient number, since it is larger than the sum of its proper divisors (9707896).

12542276 is a wasteful number, since it uses less digits than its factorization.

12542276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43030 (or 43028 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 12542276 is about 3541.5075885843. The cubic root of 12542276 is about 232.3407843538.

Adding to 12542276 its reverse (67224521), we get a palindrome (79766797).

The spelling of 12542276 in words is "twelve million, five hundred forty-two thousand, two hundred seventy-six".

Divisors: 1 2 4 73 146 292 42953 85906 171812 3135569 6271138 12542276