Search a number
-
+
115442661 = 3108735401
BaseRepresentation
bin1101110000110…
…00001111100101
322001020002120010
412320120033211
5214023131121
615242200433
72601150345
oct670301745
9261202503
10115442661
115a189864
12327b3119
131abbc789
1411490d25
15a205376
hex6e183e5

115442661 has 8 divisors (see below), whose sum is σ = 154069504. Its totient is φ = 76888800.

The previous prime is 115442653. The next prime is 115442693. The reversal of 115442661 is 166244511.

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

It is not a de Polignac number, because 115442661 - 23 = 115442653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115442611) 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, 14440 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (19258688).

Almost surely, 2115442661 is an apocalyptic number.

It is an amenable number.

115442661 is a deficient number, since it is larger than the sum of its proper divisors (38626843).

115442661 is a wasteful number, since it uses less digits than its factorization.

115442661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36491.

The product of its digits is 5760, while the sum is 30.

The square root of 115442661 is about 10744.4246472298. The cubic root of 115442661 is about 486.9175666194.

The spelling of 115442661 in words is "one hundred fifteen million, four hundred forty-two thousand, six hundred sixty-one".

Divisors: 1 3 1087 3261 35401 106203 38480887 115442661