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115501453 = 997115849
BaseRepresentation
bin1101110001001…
…10100110001101
322001100002012121
412320212212031
5214032021303
615243332541
72601513634
oct670464615
9261302177
10115501453
115a219a51
1232821151
131ac10472
14114a851b
15a2179bd
hex6e2698d

115501453 has 4 divisors (see below), whose sum is σ = 115618300. Its totient is φ = 115384608.

The previous prime is 115501433. The next prime is 115501541. The reversal of 115501453 is 354105511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354105511 = 1227728843.

It can be written as a sum of positive squares in 2 ways, for example, as 96864964 + 18636489 = 9842^2 + 4317^2 .

It is a cyclic number.

It is not a de Polignac number, because 115501453 - 221 = 113404301 is a prime.

It is a super-2 number, since 2×1155014532 = 26681171290222418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115501433) 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, 56928 + ... + 58921.

It is an arithmetic number, because the mean of its divisors is an integer number (28904575).

Almost surely, 2115501453 is an apocalyptic number.

It is an amenable number.

115501453 is a deficient number, since it is larger than the sum of its proper divisors (116847).

115501453 is an equidigital number, since it uses as much as digits as its factorization.

115501453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116846.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 115501453 is about 10747.1602295676. The cubic root of 115501453 is about 487.0002108200. Note that the first 3 decimals are identical.

Adding to 115501453 its reverse (354105511), we get a palindrome (469606964).

The spelling of 115501453 in words is "one hundred fifteen million, five hundred one thousand, four hundred fifty-three".

Divisors: 1 997 115849 115501453