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115105201 = 313713071
BaseRepresentation
bin1101101110001…
…01110110110001
322000120221122121
412313011312301
5213431331301
615231034241
72565243451
oct667056661
9260527577
10115105201
1159a79272
123266b981
131ab01cb3
1411403d61
15a18a3a1
hex6dc5db1

115105201 has 4 divisors (see below), whose sum is σ = 118818304. Its totient is φ = 111392100.

The previous prime is 115105171. The next prime is 115105217. The reversal of 115105201 is 102501511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102501511 = 714643073.

It is a cyclic number.

It is not a de Polignac number, because 115105201 - 25 = 115105169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115105801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856505 + ... + 1856566.

It is an arithmetic number, because the mean of its divisors is an integer number (29704576).

Almost surely, 2115105201 is an apocalyptic number.

It is an amenable number.

115105201 is a deficient number, since it is larger than the sum of its proper divisors (3713103).

115105201 is an equidigital number, since it uses as much as digits as its factorization.

115105201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713102.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 115105201 is about 10728.7091954251. The cubic root of 115105201 is about 486.4426538823.

Adding to 115105201 its reverse (102501511), we get a palindrome (217606712).

The spelling of 115105201 in words is "one hundred fifteen million, one hundred five thousand, two hundred one".

Divisors: 1 31 3713071 115105201