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115400633 = 449257017
BaseRepresentation
bin1101110000011…
…01111110111001
322001010221220112
412320031332321
5214020310013
615241234105
72600613665
oct670157671
9261127815
10115400633
115a160227
1232792935
131aba65ca
141147d8a5
15a1e7ba8
hex6e0dfb9

115400633 has 4 divisors (see below), whose sum is σ = 115658100. Its totient is φ = 115143168.

The previous prime is 115400617. The next prime is 115400647. The reversal of 115400633 is 336004511.

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: 336004511 = 379081203.

It can be written as a sum of positive squares in 2 ways, for example, as 28761769 + 86638864 = 5363^2 + 9308^2 .

It is a cyclic number.

It is not a de Polignac number, because 115400633 - 24 = 115400617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115400599 and 115400608.

It is not an unprimeable number, because it can be changed into a prime (115400653) 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, 128060 + ... + 128957.

It is an arithmetic number, because the mean of its divisors is an integer number (28914525).

Almost surely, 2115400633 is an apocalyptic number.

It is an amenable number.

115400633 is a deficient number, since it is larger than the sum of its proper divisors (257467).

115400633 is an equidigital number, since it uses as much as digits as its factorization.

115400633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257466.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 115400633 is about 10742.4686641386. The cubic root of 115400633 is about 486.8584704551.

The spelling of 115400633 in words is "one hundred fifteen million, four hundred thousand, six hundred thirty-three".

Divisors: 1 449 257017 115400633