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20317414 = 21317431069
BaseRepresentation
bin100110110000…
…0010011100110
31102020020020211
41031200103212
520200124124
62003250034
7334460305
oct115402346
942206224
1020317414
1110517857
12697991a
134294a50
1429ac43c
151bb4e94
hex13604e6

20317414 has 32 divisors (see below), whose sum is σ = 35592480. Its totient is φ = 8612352.

The previous prime is 20317411. The next prime is 20317439. The reversal of 20317414 is 41471302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20317411) 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, 18472 + ... + 19540.

It is an arithmetic number, because the mean of its divisors is an integer number (1112265).

Almost surely, 220317414 is an apocalyptic number.

20317414 is a deficient number, since it is larger than the sum of its proper divisors (15275066).

20317414 is a wasteful number, since it uses less digits than its factorization.

20317414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20317414 is about 4507.4842207156. The cubic root of 20317414 is about 272.8702214718.

Adding to 20317414 its reverse (41471302), we get a palindrome (61788716).

The spelling of 20317414 in words is "twenty million, three hundred seventeen thousand, four hundred fourteen".

Divisors: 1 2 13 17 26 34 43 86 221 442 559 731 1069 1118 1462 2138 9503 13897 18173 19006 27794 36346 45967 91934 236249 472498 597571 781439 1195142 1562878 10158707 20317414