Search a number
-
+
115639041 = 3710154521
BaseRepresentation
bin1101110010010…
…00001100000001
322001121001221110
412321020030001
5214100422131
615250313533
72602626030
oct671101401
9261531843
10115639041
115a303361
12328888a9
131ac5ac8b
1411502717
15a243646
hex6e48301

115639041 has 16 divisors (see below), whose sum is σ = 177959808. Its totient is φ = 65424000.

The previous prime is 115639033. The next prime is 115639061. The reversal of 115639041 is 140936511.

It is not a de Polignac number, because 115639041 - 23 = 115639033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115639001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25140 + ... + 29381.

It is an arithmetic number, because the mean of its divisors is an integer number (11122488).

Almost surely, 2115639041 is an apocalyptic number.

It is an amenable number.

115639041 is a deficient number, since it is larger than the sum of its proper divisors (62320767).

115639041 is a wasteful number, since it uses less digits than its factorization.

115639041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54632.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 115639041 is about 10753.5594572216. The cubic root of 115639041 is about 487.1935093883.

The spelling of 115639041 in words is "one hundred fifteen million, six hundred thirty-nine thousand, forty-one".

Divisors: 1 3 7 21 101 303 707 2121 54521 163563 381647 1144941 5506621 16519863 38546347 115639041