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20441908 = 223723733
BaseRepresentation
bin100110111111…
…0101100110100
31102110120000201
41031332230310
520213120113
62010050244
7335516254
oct115765464
942416021
1020441908
11105a2343
126a19984
134309606
142a01964
151bdbcdd
hex137eb34

20441908 has 18 divisors (see below), whose sum is σ = 36776166. Its totient is φ = 9942048.

The previous prime is 20441887. The next prime is 20441921. The reversal of 20441908 is 80914402.

It can be written as a sum of positive squares in 3 ways, for example, as 11985444 + 8456464 = 3462^2 + 2908^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3610 + ... + 7342.

Almost surely, 220441908 is an apocalyptic number.

It is an amenable number.

20441908 is a deficient number, since it is larger than the sum of its proper divisors (16334258).

20441908 is a wasteful number, since it uses less digits than its factorization.

20441908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811 (or 3772 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20441908 is about 4521.2728296355. The cubic root of 20441908 is about 273.4264201421.

The spelling of 20441908 in words is "twenty million, four hundred forty-one thousand, nine hundred eight".

Divisors: 1 2 4 37 74 148 1369 2738 3733 5476 7466 14932 138121 276242 552484 5110477 10220954 20441908