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20714253 = 379710169
BaseRepresentation
bin100111100000…
…1001100001101
31102222101121120
41033001030031
520300324003
62015551153
7341032260
oct117011415
942871546
1020714253
1110768a1a
126b2b4b9
1343a3571
142a72cd7
151c42853
hex13c130d

20714253 has 16 divisors (see below), whose sum is σ = 31893120. Its totient is φ = 11713536.

The previous prime is 20714249. The next prime is 20714303. The reversal of 20714253 is 35241702.

It is not a de Polignac number, because 20714253 - 22 = 20714249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714153) 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 15 ways as a sum of consecutive naturals, for example, 3048 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (1993320).

Almost surely, 220714253 is an apocalyptic number.

It is an amenable number.

20714253 is a deficient number, since it is larger than the sum of its proper divisors (11178867).

20714253 is a wasteful number, since it uses less digits than its factorization.

20714253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20714253 is about 4551.2913552090. The cubic root of 20714253 is about 274.6353425634.

Adding to 20714253 its reverse (35241702), we get a palindrome (55955955).

The spelling of 20714253 in words is "twenty million, seven hundred fourteen thousand, two hundred fifty-three".

Divisors: 1 3 7 21 97 291 679 2037 10169 30507 71183 213549 986393 2959179 6904751 20714253