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115113142 = 2371997817
BaseRepresentation
bin1101101110001…
…11110010110110
322000121100112201
412313013302312
5213432110032
615231135114
72565305554
oct667076266
9260540481
10115113142
1159a84231
123267449a
131ab057b1
1411406bd4
15a18c8e7
hex6dc7cb6

115113142 has 16 divisors (see below), whose sum is σ = 178250400. Its totient is φ = 55712448.

The previous prime is 115113133. The next prime is 115113143. The reversal of 115113142 is 241311511.

It is a super-2 number, since 2×1151131422 = 26502070922224328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115113143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10818 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (11140650).

Almost surely, 2115113142 is an apocalyptic number.

115113142 is a deficient number, since it is larger than the sum of its proper divisors (63137258).

115113142 is a wasteful number, since it uses less digits than its factorization.

115113142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055.

The product of its digits is 120, while the sum is 19.

The square root of 115113142 is about 10729.0792708415. The cubic root of 115113142 is about 486.4538400328.

Adding to 115113142 its reverse (241311511), we get a palindrome (356424653).

The spelling of 115113142 in words is "one hundred fifteen million, one hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 37 74 199 398 7363 7817 14726 15634 289229 578458 1555583 3111166 57556571 115113142