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12542134 = 211251827
BaseRepresentation
bin101111110110…
…000010110110
3212121012120111
4233312002312
511202322014
61124453234
7211414663
oct57660266
925535514
1012542134
117097100
12424a21a
1327a19a7
141946a6a
15117b2c4
hexbf60b6

12542134 has 12 divisors (see below), whose sum is σ = 20679372. Its totient is φ = 5700860.

The previous prime is 12542113. The next prime is 12542137. The reversal of 12542134 is 43124521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25672 + ... + 26155.

It is an arithmetic number, because the mean of its divisors is an integer number (1723281).

Almost surely, 212542134 is an apocalyptic number.

12542134 is a deficient number, since it is larger than the sum of its proper divisors (8137238).

12542134 is a wasteful number, since it uses less digits than its factorization.

12542134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51851 (or 51840 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12542134 is about 3541.4875405682. The cubic root of 12542134 is about 232.3399075189.

Adding to 12542134 its reverse (43124521), we get a palindrome (55666655).

The spelling of 12542134 in words is "twelve million, five hundred forty-two thousand, one hundred thirty-four".

Divisors: 1 2 11 22 121 242 51827 103654 570097 1140194 6271067 12542134