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115054531 = 257447683
BaseRepresentation
bin1101101101110…
…01011111000011
322000111101010221
412312321133003
5213423221111
615230003511
72564642644
oct666713703
9260441127
10115054531
1159a44199
1232646597
131aab4c07
14113cd6cb
15a17a371
hex6db97c3

115054531 has 4 divisors (see below), whose sum is σ = 115502472. Its totient is φ = 114606592.

The previous prime is 115054529. The next prime is 115054553. The reversal of 115054531 is 135450511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115054531 - 21 = 115054529 is a prime.

It is a super-2 number, since 2×1150545312 = 26475090207259922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115054496 and 115054505.

It is not an unprimeable number, because it can be changed into a prime (115054561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223585 + ... + 224098.

It is an arithmetic number, because the mean of its divisors is an integer number (28875618).

Almost surely, 2115054531 is an apocalyptic number.

115054531 is a deficient number, since it is larger than the sum of its proper divisors (447941).

115054531 is an equidigital number, since it uses as much as digits as its factorization.

115054531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447940.

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

The square root of 115054531 is about 10726.3475144151. The cubic root of 115054531 is about 486.3712650812.

The spelling of 115054531 in words is "one hundred fifteen million, fifty-four thousand, five hundred thirty-one".

Divisors: 1 257 447683 115054531