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14212505 = 523831489
BaseRepresentation
bin110110001101…
…110110011001
3222202001220002
4312031312121
512114300010
61224342345
7231542606
oct66156631
928661802
1014212505
11802807a
1249149b5
132c38088
141c5d6ad
1513ab1a5
hexd8dd99

14212505 has 16 divisors (see below), whose sum is σ = 18023040. Its totient is φ = 10737408.

The previous prime is 14212487. The next prime is 14212507. The reversal of 14212505 is 50521241.

It is a cyclic number.

It is not a de Polignac number, because 14212505 - 214 = 14196121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14212507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8801 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (1126440).

Almost surely, 214212505 is an apocalyptic number.

It is an amenable number.

14212505 is a deficient number, since it is larger than the sum of its proper divisors (3810535).

14212505 is a wasteful number, since it uses less digits than its factorization.

14212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 14212505 is about 3769.9476123681. The cubic root of 14212505 is about 242.2275538749.

Adding to 14212505 its reverse (50521241), we get a palindrome (64733746).

The spelling of 14212505 in words is "fourteen million, two hundred twelve thousand, five hundred five".

Divisors: 1 5 23 83 115 415 1489 1909 7445 9545 34247 123587 171235 617935 2842501 14212505