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20414460 = 22351130931
BaseRepresentation
bin100110111011…
…1111111111100
31102102011101010
41031313333330
520211230320
62005315220
7335343243
oct115677774
942364333
1020414460
1110583760
126a05b10
1342c9c81
1429d595a
151bd3ae0
hex1377ffc

20414460 has 48 divisors (see below), whose sum is σ = 62358912. Its totient is φ = 4948800.

The previous prime is 20414441. The next prime is 20414473. The reversal of 20414460 is 6441402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14806 + ... + 16125.

It is an arithmetic number, because the mean of its divisors is an integer number (1299144).

Almost surely, 220414460 is an apocalyptic number.

20414460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20414460 is an abundant number, since it is smaller than the sum of its proper divisors (41944452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20414460 is a wasteful number, since it uses less digits than its factorization.

20414460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30954 (or 30952 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20414460 is about 4518.2363815985. The cubic root of 20414460 is about 273.3039858768.

Adding to 20414460 its reverse (6441402), we get a palindrome (26855862).

The spelling of 20414460 in words is "twenty million, four hundred fourteen thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 30931 61862 92793 123724 154655 185586 309310 340241 371172 463965 618620 680482 927930 1020723 1360964 1701205 1855860 2041446 3402410 4082892 5103615 6804820 10207230 20414460