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115051693 = 503228731
BaseRepresentation
bin1101101101110…
…00110010101101
322000111020020211
412312320302231
5213423123233
615225542421
72564631451
oct666706255
9260436224
10115051693
1159a42049
1232644a11
131aab3833
14113cc661
15a1795cd
hex6db8cad

115051693 has 4 divisors (see below), whose sum is σ = 115280928. Its totient is φ = 114822460.

The previous prime is 115051687. The next prime is 115051709. The reversal of 115051693 is 396150511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396150511 = 743533177.

It is a cyclic number.

It is not a de Polignac number, because 115051693 - 225 = 81497261 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115055693) 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, 113863 + ... + 114868.

It is an arithmetic number, because the mean of its divisors is an integer number (28820232).

Almost surely, 2115051693 is an apocalyptic number.

It is an amenable number.

115051693 is a deficient number, since it is larger than the sum of its proper divisors (229235).

115051693 is an equidigital number, since it uses as much as digits as its factorization.

115051693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229234.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 115051693 is about 10726.2152225284. The cubic root of 115051693 is about 486.3672660123.

The spelling of 115051693 in words is "one hundred fifteen million, fifty-one thousand, six hundred ninety-three".

Divisors: 1 503 228731 115051693