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20410693 = 1719292179
BaseRepresentation
bin100110111011…
…1000101000101
31102101222012121
41031313011011
520211120233
62005245541
7335326252
oct115670505
942358177
1020410693
1110580946
126a038b1
1342c8344
1429d4429
151bd292d
hex1377145

20410693 has 16 divisors (see below), whose sum is σ = 23544000. Its totient is φ = 17563392.

The previous prime is 20410667. The next prime is 20410703. The reversal of 20410693 is 39601402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20410693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8278 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (1471500).

Almost surely, 220410693 is an apocalyptic number.

It is an amenable number.

20410693 is a deficient number, since it is larger than the sum of its proper divisors (3133307).

20410693 is a wasteful number, since it uses less digits than its factorization.

20410693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20410693 is about 4517.8194961729. The cubic root of 20410693 is about 273.2871742729.

The spelling of 20410693 in words is "twenty million, four hundred ten thousand, six hundred ninety-three".

Divisors: 1 17 19 29 323 493 551 2179 9367 37043 41401 63191 703817 1074247 1200629 20410693