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20038255 = 519210929
BaseRepresentation
bin100110001110…
…0001001101111
31101201001022121
41030130021233
520112211010
61553253411
7332215366
oct114341157
941631277
1020038255
1110347046
126864267
1341c7973
1429387dd
151b5c3da
hex131c26f

20038255 has 8 divisors (see below), whose sum is σ = 25311600. Its totient is φ = 15186816.

The previous prime is 20038253. The next prime is 20038273. The reversal of 20038255 is 55283002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20038255 - 21 = 20038253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038253) 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 7 ways as a sum of consecutive naturals, for example, 105370 + ... + 105559.

It is an arithmetic number, because the mean of its divisors is an integer number (3163950).

Almost surely, 220038255 is an apocalyptic number.

20038255 is a deficient number, since it is larger than the sum of its proper divisors (5273345).

20038255 is a wasteful number, since it uses less digits than its factorization.

20038255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210953.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20038255 is about 4476.4109507506. The cubic root of 20038255 is about 271.6147181753.

The spelling of 20038255 in words is "twenty million, thirty-eight thousand, two hundred fifty-five".

Divisors: 1 5 19 95 210929 1054645 4007651 20038255