Search a number
-
+
115230212512311 = 31361237720377117
BaseRepresentation
bin11010001100110100011111…
…111000100101101000110111
3120002222220022122010020111010
4122030310133320211220313
5110100412433400343221
61045024010121243303
733162052041404211
oct3214643770455067
9502886278106433
10115230212512311
1133796949a10596
1210b10479033533
134c3b215a951c0
14206525a1315b1
15d4c6079adc76
hex68cd1fe25a37

115230212512311 has 32 divisors (see below), whose sum is σ = 168241963089088. Its totient is φ = 69719079767040.

The previous prime is 115230212512243. The next prime is 115230212512321. The reversal of 115230212512311 is 113215212032511.

It is not a de Polignac number, because 115230212512311 - 223 = 115230204123703 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 (115230212512321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4533676 + ... + 15843441.

It is an arithmetic number, because the mean of its divisors is an integer number (5257561346534).

Almost surely, 2115230212512311 is an apocalyptic number.

115230212512311 is a deficient number, since it is larger than the sum of its proper divisors (53011750576777).

115230212512311 is a wasteful number, since it uses less digits than its factorization.

115230212512311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20379571.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 115230212512311 its reverse (113215212032511), we get a palindrome (228445424544822).

The spelling of 115230212512311 in words is "one hundred fifteen trillion, two hundred thirty billion, two hundred twelve million, five hundred twelve thousand, three hundred eleven".

Divisors: 1 3 13 39 61 183 793 2377 2379 7131 30901 92703 144997 434991 1884961 5654883 20377117 61131351 264902521 794707563 1243004137 3729012411 16159053781 48436407109 48477161343 145309221327 629673292417 1889019877251 2954620833649 8863862500947 38410070837437 115230212512311