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115132238 = 2134428163
BaseRepresentation
bin1101101110011…
…00011101001110
322000122022201222
412313030131032
5213433212423
615231403342
72565415334
oct667143516
9260568658
10115132238
1159a97611
1232683552
131ab113b0
141140db54
15a1933c8
hex6dcc74e

115132238 has 8 divisors (see below), whose sum is σ = 185982888. Its totient is φ = 53137944.

The previous prime is 115132219. The next prime is 115132247. The reversal of 115132238 is 832231511.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 4428163 = 115132238 / (1 + 1 + 5 + 1 + 3 + 2 + 2 + 3 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214056 + ... + 2214107.

It is an arithmetic number, because the mean of its divisors is an integer number (23247861).

Almost surely, 2115132238 is an apocalyptic number.

115132238 is a deficient number, since it is larger than the sum of its proper divisors (70850650).

115132238 is a wasteful number, since it uses less digits than its factorization.

115132238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428178.

The product of its digits is 1440, while the sum is 26.

The square root of 115132238 is about 10729.9691518662. The cubic root of 115132238 is about 486.4807376535.

Adding to 115132238 its reverse (832231511), we get a palindrome (947363749).

The spelling of 115132238 in words is "one hundred fifteen million, one hundred thirty-two thousand, two hundred thirty-eight".

Divisors: 1 2 13 26 4428163 8856326 57566119 115132238