Search a number
-
+
115879801 is a prime number
BaseRepresentation
bin1101110100000…
…10111101111001
322002001022012111
412322002331321
5214131123201
615255412321
72604650662
oct672027571
9262038174
10115879801
115a458234
12329840a1
131b01373b
1411566369
15a28eb51
hex6e82f79

115879801 has 2 divisors, whose sum is σ = 115879802. Its totient is φ = 115879800.

The previous prime is 115879793. The next prime is 115879831. The reversal of 115879801 is 108978511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109223401 + 6656400 = 10451^2 + 2580^2 .

It is an emirp because it is prime and its reverse (108978511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115879801 - 23 = 115879793 is a prime.

It is not a weakly prime, because it can be changed into another prime (115879831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57939900 + 57939901.

It is an arithmetic number, because the mean of its divisors is an integer number (57939901).

Almost surely, 2115879801 is an apocalyptic number.

It is an amenable number.

115879801 is a deficient number, since it is larger than the sum of its proper divisors (1).

115879801 is an equidigital number, since it uses as much as digits as its factorization.

115879801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 115879801 is about 10764.7480695091. The cubic root of 115879801 is about 487.5313866270.

The spelling of 115879801 in words is "one hundred fifteen million, eight hundred seventy-nine thousand, eight hundred one".