Search a number
-
+
115240823 is a prime number
BaseRepresentation
bin1101101111001…
…10111101110111
322000211211200122
412313212331313
5214000201243
615234002155
72566350035
oct667467567
9260754618
10115240823
115a061155
123271635b
131ab4b949
141143b555
15a1b5668
hex6de6f77

115240823 has 2 divisors, whose sum is σ = 115240824. Its totient is φ = 115240822.

The previous prime is 115240813. The next prime is 115240859. The reversal of 115240823 is 328042511.

It is a weak prime.

It is an emirp because it is prime and its reverse (328042511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115240823 - 26 = 115240759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115240792 and 115240801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115240813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57620411 + 57620412.

It is an arithmetic number, because the mean of its divisors is an integer number (57620412).

Almost surely, 2115240823 is an apocalyptic number.

115240823 is a deficient number, since it is larger than the sum of its proper divisors (1).

115240823 is an equidigital number, since it uses as much as digits as its factorization.

115240823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 115240823 is about 10735.0278527818. The cubic root of 115240823 is about 486.6336282590.

The spelling of 115240823 in words is "one hundred fifteen million, two hundred forty thousand, eight hundred twenty-three".