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115490443 = 1123102841
BaseRepresentation
bin1101110001000…
…11111010001011
322001022112002211
412320203322023
5214031143233
615243205551
72601436555
oct670437213
9261275084
10115490443
115a211752
12328168b7
131ac08453
14114a44d5
15a2145cd
hex6e23e8b

115490443 has 4 divisors (see below), whose sum is σ = 115594408. Its totient is φ = 115386480.

The previous prime is 115490423. The next prime is 115490449. The reversal of 115490443 is 344094511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344094511 = 834145717.

It is a cyclic number.

It is not a de Polignac number, because 115490443 - 29 = 115489931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115490449) 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, 50298 + ... + 52543.

It is an arithmetic number, because the mean of its divisors is an integer number (28898602).

Almost surely, 2115490443 is an apocalyptic number.

115490443 is a deficient number, since it is larger than the sum of its proper divisors (103965).

115490443 is a wasteful number, since it uses less digits than its factorization.

115490443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103964.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 115490443 is about 10746.6479890243. The cubic root of 115490443 is about 486.9847361440.

The spelling of 115490443 in words is "one hundred fifteen million, four hundred ninety thousand, four hundred forty-three".

Divisors: 1 1123 102841 115490443