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115013217 = 31129120181
BaseRepresentation
bin1101101101011…
…11011001100001
322000102021110210
412312233121201
5213420410332
615225044333
72564411334
oct666573141
9260367423
10115013217
1159a16150
12326266a9
131aa9c177
14113bc61b
15a16cecc
hex6daf661

115013217 has 16 divisors (see below), whose sum is σ = 173062080. Its totient is φ = 67300800.

The previous prime is 115013209. The next prime is 115013219. The reversal of 115013217 is 712310511.

It is a happy number.

It is not a de Polignac number, because 115013217 - 23 = 115013209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115013193 and 115013202.

It is not an unprimeable number, because it can be changed into a prime (115013219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59134 + ... + 61047.

It is an arithmetic number, because the mean of its divisors is an integer number (10816380).

Almost surely, 2115013217 is an apocalyptic number.

It is an amenable number.

115013217 is a deficient number, since it is larger than the sum of its proper divisors (58048863).

115013217 is a wasteful number, since it uses less digits than its factorization.

115013217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120224.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 115013217 is about 10724.4215228608. The cubic root of 115013217 is about 486.3130424052.

Adding to 115013217 its reverse (712310511), we get a palindrome (827323728).

The spelling of 115013217 in words is "one hundred fifteen million, thirteen thousand, two hundred seventeen".

Divisors: 1 3 11 29 33 87 319 957 120181 360543 1321991 3485249 3965973 10455747 38337739 115013217