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115008131 = 716429733
BaseRepresentation
bin1101101101011…
…10001010000011
322000102000111102
412312232022003
5213420230011
615225005015
72564360450
oct666561203
9260360442
10115008131
1159a12347
123262376b
131aa99a64
14113ba827
15a16b73b
hex6dae283

115008131 has 4 divisors (see below), whose sum is σ = 131437872. Its totient is φ = 98578392.

The previous prime is 115008053. The next prime is 115008137. The reversal of 115008131 is 131800511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-115008131 is a prime.

It is a super-3 number, since 3×1150081313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115008137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8214860 + ... + 8214873.

It is an arithmetic number, because the mean of its divisors is an integer number (32859468).

Almost surely, 2115008131 is an apocalyptic number.

115008131 is a deficient number, since it is larger than the sum of its proper divisors (16429741).

115008131 is an equidigital number, since it uses as much as digits as its factorization.

115008131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429740.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 115008131 is about 10724.1843978925. The cubic root of 115008131 is about 486.3058738824.

Adding to 115008131 its reverse (131800511), we get a palindrome (246808642).

The spelling of 115008131 in words is "one hundred fifteen million, eight thousand, one hundred thirty-one".

Divisors: 1 7 16429733 115008131