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115052405 = 5136129017
BaseRepresentation
bin1101101101110…
…00111101110101
322000111021020012
412312320331311
5213423134110
615225550005
72564633516
oct666707565
9260437205
10115052405
1159a42636
1232645305
131aab3c60
14113cca0d
15a179905
hex6db8f75

115052405 has 16 divisors (see below), whose sum is σ = 151125744. Its totient is φ = 83566080.

The previous prime is 115052401. The next prime is 115052407. The reversal of 115052405 is 504250511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 52215076 + 62837329 = 7226^2 + 7927^2 .

It is not a de Polignac number, because 115052405 - 22 = 115052401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115052401) 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, 10544 + ... + 18473.

It is an arithmetic number, because the mean of its divisors is an integer number (9445359).

Almost surely, 2115052405 is an apocalyptic number.

It is an amenable number.

115052405 is a deficient number, since it is larger than the sum of its proper divisors (36073339).

115052405 is a wasteful number, since it uses less digits than its factorization.

115052405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29096.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 115052405 is about 10726.2484121896. The cubic root of 115052405 is about 486.3682693085.

The spelling of 115052405 in words is "one hundred fifteen million, fifty-two thousand, four hundred five".

Divisors: 1 5 13 61 65 305 793 3965 29017 145085 377221 1770037 1886105 8850185 23010481 115052405