Search a number
-
+
115153121 = 178381611
BaseRepresentation
bin1101101110100…
…01100011100001
322000200101101102
412313101203201
5213434344441
615232044145
72565533246
oct667214341
9260611342
10115153121
115a001276
1232693655
131ab1aa55
14114175cd
15a19969b
hex6dd18e1

115153121 has 8 divisors (see below), whose sum is σ = 123397344. Its totient is φ = 107072320.

The previous prime is 115153109. The next prime is 115153147. The reversal of 115153121 is 121351511.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-115153121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 115153093 and 115153102.

It is not an unprimeable number, because it can be changed into a prime (115153321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39395 + ... + 42216.

It is an arithmetic number, because the mean of its divisors is an integer number (15424668).

Almost surely, 2115153121 is an apocalyptic number.

It is an amenable number.

115153121 is a deficient number, since it is larger than the sum of its proper divisors (8244223).

115153121 is an equidigital number, since it uses as much as digits as its factorization.

115153121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81711.

The product of its digits is 150, while the sum is 20.

The square root of 115153121 is about 10730.9422233092. The cubic root of 115153121 is about 486.5101489440.

The spelling of 115153121 in words is "one hundred fifteen million, one hundred fifty-three thousand, one hundred twenty-one".

Divisors: 1 17 83 1411 81611 1387387 6773713 115153121