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115020230161 = 1016311317547
BaseRepresentation
bin110101100011110111…
…1010110111000010001
3101222212221212002111111
41223013233112320101
53341030134331121
6124501202413321
711211210552664
oct1530757267021
9358787762444
10115020230161
1144863a15361
121a360061241
13ab005bc8b5
1457d1c2d6db
152ed2be82e1
hex1ac7bd6e11

115020230161 has 4 divisors (see below), whose sum is σ = 115031557872. Its totient is φ = 115008902452.

The previous prime is 115020230077. The next prime is 115020230183. The reversal of 115020230161 is 161032020511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161032020511 = 401401576111.

It is a cyclic number.

It is not a de Polignac number, because 115020230161 - 219 = 115019705873 is a prime.

It is a super-3 number, since 3×1150202301613 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115020230461) 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, 5648611 + ... + 5668936.

It is an arithmetic number, because the mean of its divisors is an integer number (28757889468).

Almost surely, 2115020230161 is an apocalyptic number.

It is an amenable number.

115020230161 is a deficient number, since it is larger than the sum of its proper divisors (11327711).

115020230161 is a wasteful number, since it uses less digits than its factorization.

115020230161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11327710.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 115020230161 its reverse (161032020511), we get a palindrome (276052250672).

The spelling of 115020230161 in words is "one hundred fifteen billion, twenty million, two hundred thirty thousand, one hundred sixty-one".

Divisors: 1 10163 11317547 115020230161