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115312111401 = 3832054322543
BaseRepresentation
bin110101101100100100…
…0110010111100101001
3102000122022002012021210
41223121020302330221
53342124400031101
6124550150423333
711221353526464
oct1533110627451
9360568065253
10115312111401
11449a3754023
121a421961b49
13ab48c071a6
14581c8cc2db
152eed6517d6
hex1ad9232f29

115312111401 has 16 divisors (see below), whose sum is σ = 155616362496. Its totient is φ = 75941473296.

The previous prime is 115312111381. The next prime is 115312111423. The reversal of 115312111401 is 104111213511.

It is not a de Polignac number, because 115312111401 - 29 = 115312110889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115312111441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5103936 + ... + 5126478.

It is an arithmetic number, because the mean of its divisors is an integer number (9726022656).

Almost surely, 2115312111401 is an apocalyptic number.

It is an amenable number.

115312111401 is a deficient number, since it is larger than the sum of its proper divisors (40304251095).

115312111401 is a wasteful number, since it uses less digits than its factorization.

115312111401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43172.

The product of its (nonzero) digits is 120, while the sum is 21.

Adding to 115312111401 its reverse (104111213511), we get a palindrome (219423324912).

The spelling of 115312111401 in words is "one hundred fifteen billion, three hundred twelve million, one hundred eleven thousand, four hundred one".

Divisors: 1 3 83 249 20543 22543 61629 67629 1705069 1871069 5115207 5613207 463100849 1389302547 38437370467 115312111401