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14142121 = 783101241
BaseRepresentation
bin110101111100…
…101010101001
3222121111100021
4311330222221
512110021441
61223040441
7231130450
oct65745251
928544307
1014142121
117a8a204
1248a0121
132c12026
141c41b97
1513953d1
hexd7caa9

14142121 has 16 divisors (see below), whose sum is σ = 16587648. Its totient is φ = 11808000.

The previous prime is 14142119. The next prime is 14142127. The reversal of 14142121 is 12124141.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 14142121 - 21 = 14142119 is a prime.

14142121 is a modest number, since divided by 2121 gives 1414 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 14142095 and 14142104.

It is not an unprimeable number, because it can be changed into a prime (14142127) 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, 58561 + ... + 58801.

It is an arithmetic number, because the mean of its divisors is an integer number (1036728).

Almost surely, 214142121 is an apocalyptic number.

It is an amenable number.

14142121 is a deficient number, since it is larger than the sum of its proper divisors (2445527).

14142121 is a wasteful number, since it uses less digits than its factorization.

14142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 64, while the sum is 16.

The square root of 14142121 is about 3760.6011487527. The cubic root of 14142121 is about 241.8270341581.

Adding to 14142121 its reverse (12124141), we get a palindrome (26266262).

The spelling of 14142121 in words is "fourteen million, one hundred forty-two thousand, one hundred twenty-one".

Divisors: 1 7 83 101 241 581 707 1687 8383 20003 24341 58681 140021 170387 2020303 14142121