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20412711 = 32114147107
BaseRepresentation
bin100110111011…
…1100100100111
31102102001222100
41031313210213
520211201321
62005303143
7335335164
oct115674447
942361870
1020412711
1110582410
126a04ab3
1342c9237
1429d506b
151bd3326
hex1377927

20412711 has 48 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 11702400.

The previous prime is 20412709. The next prime is 20412727. The reversal of 20412711 is 11721402.

It is not a de Polignac number, because 20412711 - 21 = 20412709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190720 + ... + 190826.

It is an arithmetic number, because the mean of its divisors is an integer number (707616).

Almost surely, 220412711 is an apocalyptic number.

20412711 is a deficient number, since it is larger than the sum of its proper divisors (13552857).

20412711 is a wasteful number, since it uses less digits than its factorization.

20412711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 20412711 is about 4518.0428284823. The cubic root of 20412711 is about 273.2961805871.

The spelling of 20412711 in words is "twenty million, four hundred twelve thousand, seven hundred eleven".

Divisors: 1 3 9 11 33 41 47 99 107 123 141 321 369 423 451 517 963 1177 1353 1551 1927 3531 4059 4387 4653 5029 5781 10593 13161 15087 17343 21197 39483 45261 48257 55319 63591 144771 165957 190773 206189 434313 497871 618567 1855701 2268079 6804237 20412711