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115520455 = 5137168643
BaseRepresentation
bin1101110001010…
…11001111000111
322001101001021101
412320223033013
5214033123310
615244000531
72601623221
oct670531707
9261331241
10115520455
115a232256
1232830147
131ac18ccb
14114b1411
15a21d43a
hex6e2b3c7

115520455 has 8 divisors (see below), whose sum is σ = 139637232. Its totient is φ = 91741248.

The previous prime is 115520453. The next prime is 115520533. The reversal of 115520455 is 554025511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115520455 - 21 = 115520453 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 (115520453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83637 + ... + 85006.

It is an arithmetic number, because the mean of its divisors is an integer number (17454654).

Almost surely, 2115520455 is an apocalyptic number.

115520455 is a deficient number, since it is larger than the sum of its proper divisors (24116777).

115520455 is a wasteful number, since it uses less digits than its factorization.

115520455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168785.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 115520455 is about 10748.0442406979. The cubic root of 115520455 is about 487.0269160269.

Adding to 115520455 its reverse (554025511), we get a palindrome (669545966).

The spelling of 115520455 in words is "one hundred fifteen million, five hundred twenty thousand, four hundred fifty-five".

Divisors: 1 5 137 685 168643 843215 23104091 115520455