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42514321 = 53899013
BaseRepresentation
bin1010001000101…
…1011110010001
32221222221200111
42202023132101
541340424241
64115121321
71024236313
oct242133621
987887614
1042514321
1121aa8703
12122a3241
138a67105
1459097b3
153aebc81
hex288b791

42514321 has 8 divisors (see below), whose sum is σ = 43808040. Its totient is φ = 41238912.

The previous prime is 42514313. The next prime is 42514337. The reversal of 42514321 is 12341524.

It can be written as a sum of positive squares in 4 ways, for example, as 4260096 + 38254225 = 2064^2 + 6185^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42514321 - 23 = 42514313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42514292 and 42514301.

It is not an unprimeable number, because it can be changed into a prime (42514721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 9223.

It is an arithmetic number, because the mean of its divisors is an integer number (5476005).

Almost surely, 242514321 is an apocalyptic number.

It is an amenable number.

42514321 is a deficient number, since it is larger than the sum of its proper divisors (1293719).

42514321 is an equidigital number, since it uses as much as digits as its factorization.

42514321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155.

The product of its digits is 960, while the sum is 22.

The square root of 42514321 is about 6520.3006832507. The cubic root of 42514321 is about 349.0157955429.

Adding to 42514321 its reverse (12341524), we get a palindrome (54855845).

The spelling of 42514321 in words is "forty-two million, five hundred fourteen thousand, three hundred twenty-one".

Divisors: 1 53 89 4717 9013 477689 802157 42514321