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12858045 = 35857203
BaseRepresentation
bin110001000011…
…001010111101
3220012020220220
4301003022331
511242424140
61135331553
7214202004
oct61031275
926166826
1012858045
117292492
124380bb9
132882715
1419c9c3b
1511debd0
hexc432bd

12858045 has 8 divisors (see below), whose sum is σ = 20572896. Its totient is φ = 6857616.

The previous prime is 12858017. The next prime is 12858061. The reversal of 12858045 is 54085821.

12858045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12858045 - 210 = 12857021 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12857997 and 12858015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428587 + ... + 428616.

It is an arithmetic number, because the mean of its divisors is an integer number (2571612).

Almost surely, 212858045 is an apocalyptic number.

12858045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12858045 is a deficient number, since it is larger than the sum of its proper divisors (7714851).

12858045 is an equidigital number, since it uses as much as digits as its factorization.

12858045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857211.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 12858045 is about 3585.8116236077. The cubic root of 12858045 is about 234.2744788492.

The spelling of 12858045 in words is "twelve million, eight hundred fifty-eight thousand, forty-five".

Divisors: 1 3 5 15 857203 2571609 4286015 12858045