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20714261 = 43736599
BaseRepresentation
bin100111100000…
…1001100010101
31102222101121212
41033001030111
520300324021
62015551205
7341032301
oct117011425
942871555
1020714261
1110768a27
126b2b505
1343a3579
142a72d01
151c4285b
hex13c1315

20714261 has 8 divisors (see below), whose sum is σ = 21489600. Its totient is φ = 19952352.

The previous prime is 20714249. The next prime is 20714303. The reversal of 20714261 is 16241702.

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 20714261 - 214 = 20697877 is a prime.

It is a super-2 number, since 2×207142612 = 858161217552242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (2686200).

Almost surely, 220714261 is an apocalyptic number.

It is an amenable number.

20714261 is a deficient number, since it is larger than the sum of its proper divisors (775339).

20714261 is an equidigital number, since it uses as much as digits as its factorization.

20714261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20714261 is about 4551.2922340803. The cubic root of 20714261 is about 274.6353779188.

Adding to 20714261 its reverse (16241702), we get a palindrome (36955963).

The spelling of 20714261 in words is "twenty million, seven hundred fourteen thousand, two hundred sixty-one".

Divisors: 1 43 73 3139 6599 283757 481727 20714261