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12052519 = 73165103
BaseRepresentation
bin101101111110…
…100000100111
3211200022221121
4231332200213
511041140034
61110154411
7204305353
oct55764047
924608847
1012052519
116892266
124052a07
13265cb8b
14185a463
1510d11b4
hexb7e827

12052519 has 4 divisors (see below), whose sum is σ = 12217696. Its totient is φ = 11887344.

The previous prime is 12052489. The next prime is 12052543. The reversal of 12052519 is 91525021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12052519 - 213 = 12044327 is a prime.

It is a super-2 number, since 2×120525192 = 290526428490722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12052493 and 12052502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052219) 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, 82479 + ... + 82624.

It is an arithmetic number, because the mean of its divisors is an integer number (3054424).

Almost surely, 212052519 is an apocalyptic number.

12052519 is a deficient number, since it is larger than the sum of its proper divisors (165177).

12052519 is an equidigital number, since it uses as much as digits as its factorization.

12052519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165176.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 12052519 is about 3471.6738038013. The cubic root of 12052519 is about 229.2763582568.

The spelling of 12052519 in words is "twelve million, fifty-two thousand, five hundred nineteen".

Divisors: 1 73 165103 12052519