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145834105 = 529166821
BaseRepresentation
bin10001011000101…
…00000001111001
3101011102010210011
420230110001321
5244313142410
622245421521
73420366214
oct1054240171
9334363704
10145834105
117535735a
1240a0a8a1
13242a0991
141552277b
15cc0a18a
hex8b14079

145834105 has 4 divisors (see below), whose sum is σ = 175000932. Its totient is φ = 116667280.

The previous prime is 145834093. The next prime is 145834121. The reversal of 145834105 is 501438541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501438541 = 3713552393.

It can be written as a sum of positive squares in 2 ways, for example, as 33304441 + 112529664 = 5771^2 + 10608^2 .

It is not a de Polignac number, because 145834105 - 27 = 145833977 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14583406 + ... + 14583415.

It is an arithmetic number, because the mean of its divisors is an integer number (43750233).

Almost surely, 2145834105 is an apocalyptic number.

It is an amenable number.

145834105 is a deficient number, since it is larger than the sum of its proper divisors (29166827).

145834105 is an equidigital number, since it uses as much as digits as its factorization.

145834105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29166826.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 145834105 is about 12076.1792384843. The cubic root of 145834105 is about 526.3642282077.

The spelling of 145834105 in words is "one hundred forty-five million, eight hundred thirty-four thousand, one hundred five".

Divisors: 1 5 29166821 145834105