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14121745 = 511972647
BaseRepresentation
bin110101110111…
…101100010001
3222120110101121
4311313230101
512103343440
61222402241
7231014161
oct65675421
928513347
1014121745
117a75970
124890381
132c05981
141c385a1
15138e34a
hexd77b11

14121745 has 16 divisors (see below), whose sum is σ = 18684288. Its totient is φ = 10160640.

The previous prime is 14121733. The next prime is 14121749. The reversal of 14121745 is 54712141.

It is not a de Polignac number, because 14121745 - 219 = 13597457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14121749) 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, 4012 + ... + 6658.

It is an arithmetic number, because the mean of its divisors is an integer number (1167768).

Almost surely, 214121745 is an apocalyptic number.

It is an amenable number.

14121745 is a deficient number, since it is larger than the sum of its proper divisors (4562543).

14121745 is a wasteful number, since it uses less digits than its factorization.

14121745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its digits is 1120, while the sum is 25.

The square root of 14121745 is about 3757.8910308842. The cubic root of 14121745 is about 241.7108366880.

Adding to 14121745 its reverse (54712141), we get a palindrome (68833886).

The spelling of 14121745 in words is "fourteen million, one hundred twenty-one thousand, seven hundred forty-five".

Divisors: 1 5 11 55 97 485 1067 2647 5335 13235 29117 145585 256759 1283795 2824349 14121745