Search a number
-
+
115227811 is a prime number
BaseRepresentation
bin1101101111000…
…11110010100011
322000211011211201
412313203302203
5213444242221
615233422031
72566264066
oct667436243
9260734751
10115227811
115a0523a6
123270a917
131ab45a4a
14114368dd
15a1b1891
hex6de3ca3

115227811 has 2 divisors, whose sum is σ = 115227812. Its totient is φ = 115227810.

The previous prime is 115227793. The next prime is 115227839. The reversal of 115227811 is 118722511.

It is an a-pointer prime, because the next prime (115227839) can be obtained adding 115227811 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115227811 - 25 = 115227779 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115227811.

It is not a weakly prime, because it can be changed into another prime (115227011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57613905 + 57613906.

It is an arithmetic number, because the mean of its divisors is an integer number (57613906).

Almost surely, 2115227811 is an apocalyptic number.

115227811 is a deficient number, since it is larger than the sum of its proper divisors (1).

115227811 is an equidigital number, since it uses as much as digits as its factorization.

115227811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 28.

The square root of 115227811 is about 10734.4217822852. The cubic root of 115227811 is about 486.6153120786.

The spelling of 115227811 in words is "one hundred fifteen million, two hundred twenty-seven thousand, eight hundred eleven".